Refimprove date December 2007 Chromosome combing also known as molecular combing or DNA combing is a technique used to produce an array of uniformly stretched DNA that is then highly suitable for nucleic acid hybridization studies such as Fluorescent in situ hybridization fluorescent in situ hybridisation FISH which benefit from the uniformity of stretching, the easy access to the hybridisation target sequences, ref name http www.sciencemag.org content 277 5331 1518.long http www.sciencemag.org content 277 5331 1518.long , ref and the X ray crystallography resolution offered by the large distance between two probes, which is due to the stretching of the DNA by a factor of 1.5 times the crystallographic length of DNA. DNA in solution i.e. has a random coil structure is stretched by retracting the meniscus of the solution at a constant rate typically 300 m s . The ends of DNA strands, which are thought to be frayed i.e. open and exposing polar groups bind to ionisable groups coating a silated glass plate at a pH below the pKa of the ionizable groups ensuring they are charged enough to interact with the ends of DNA . The rest of the DNA, which is mostly dsDNA, cannot form these interactions aside from a few touch down segments along the length of the DNA strand so is available for hybridisation to probes. As the meniscus retracts, surface retention creates a force that acts on DNA to retain it in the liquid phase however this force is inferior to the strength of the DNA s attachment the result is that the DNA is stretched as it enters the air phase as the force acts in the locality of the air liquid phase, it is invariant to different lengths or conformations of the DNA in solution, so DNA of any length will be stretched the same as the meniscus retracts. As this stretching is constant along the length of a DNA, distance along the strand can be related to base content 1 m is approximately equivalent to 2 kb. DNA regions of interest are observed by hybridising ... more details
name City of Philadelphia settlement type Consolidated city county image skyline Philadelhpia Montage by Jleon 0310.jpg imagesize 325px image caption From top left, the Philadelphia skyline, a statue of Benjamin Franklin, the Liberty Bell , the Philadelphia Museum of Art , Philadelphia City ... Philadelphia maneto Let brotherly love endure Founded by William Penn image flag Flag of Philadelphia, Pennsylvania.svg image seal Seal of Philadelphia, Pennsylvania.svg image map Map of Pennsylvania highlighting Philadelphia County.svg pushpin map USA2 pushpin map caption Location in the United States ... County subdivision name United States subdivision name1 Pennsylvania subdivision name2 Philadelphia County, Pennsylvania Philadelphia leader title Mayor of Philadelphia Mayor leader name Michael ... W elevation m 12 elevation ft 39 website http www.phila.gov footnotes Philadelphia IPAc en icon f ... and the county seat of Philadelphia County, Pennsylvania Philadelphia County , with which it is coterminous ... U.S. Census. ref name population http www.factfinder2.census.gov ref Philadelphia is also ... accessdate April 14, 2011 ref The Philadelphia metropolitan division consists of five counties in Pennsylvania and has a population of 4,008,994. Popular nicknames for Philadelphia are Philly and The City ... books?id eDECAAAAQAAJ&pg RA1 PA262 v onepage&q&f false accessdate July 14, 2011 ref Philadelphia ... to serve as a port and place for government. The city grew rapidly, and by the 1750s Philadelphia ... , Philadelphia played an instrumental role as a meeting place for the Founding Fathers of the United ... on July 4, 1776 and the United States Constitution Constitution on September 17, 1787. Philadelphia ... from 1790 to 1800 while Washington, D.C. , was under construction. During the 19th century, Philadelphia ... in 1906. ref cite book title Textile industries of Philadelphia last1 Macfarlane first1 John James last2 Hicks first2 George W. B. coauthors Philadelphia Commercial Museum year 1911 publisher Philadelphia ... more details
Laboratory at The Children s Hospital of Philadelphia studies the ring 20 chromosome at the molecular ...Ring chromosome 20 , ring shaped chromosome 20 or r 20 syndrome is a rare human Chromosome abnormalities chromosome abnormality where the two arms of Chromosome 20 human chromosome 20 fuse to form a ring chromosome . The syndrome is associated with epilepsy epileptic seizures , behaviour disorders and mental retardation. When only one copy of chromosome 20 forms a ring, the individual suffers from ring 20 chromosomal Mosaic genetics mosaicism . Ring Chromosome 20 syndrome is thought to be an underdiagnosed ... for patients with epilepsy, the diagnosis of ring chromosome 20 syndrome is typically delayed or unrecognized ... with ring chromosome 20 syndrome are initially found to have complex partial seizures of frontal ... should be considered for ring 20 chromosome analysis if they have predominantly complex partial seizures ... chromosome and the standard metaphase chromosome analysis has been recommended. A karyotype analysis ... Chromosome 20 Syndrome Rather than the typical linear pattern of a chromosome, deletion of the endings of a chromosome can lead to ring formation. A chromosome has two arms, one long and one short. Deletion of the short arm of chromosome 20 does not appear to result in epilepsy however, terminal ... could be responsible for the manifestation of epilepsy in ring chromosome 20 syndrome. The most common breakpoint in patients is in the q13.33 region of chromosome 20. As chromosomes occur in pairs, the affected individual has one normal chromosome and the other replaced by a ring chromosome. However, this is not the case for every cell in the patient. In most individuals with ring chromosome 20 syndrome, a certain percentage have two normal chromosome 20s and the remainder have one normal and one ring 20 chromosome. This mixture is called mosaicm. A higher degree percentage of mosaicism ... ratio is somewhat limited. Occasionally, there is a variation, where the ring chromosome 20 ... more details
abnormality, which is commonly called the Philadelphiachromosome , is found only in cancer cells. The Philadelphiachromosome has been identified in most cases of a slowly progressing form of blood ... progressing blood cancers acute leukemias . The presence of the Philadelphiachromosome can help ... R, Kantarjian HM, Druker BJ, Talpaz M title Philadelphiachromosome positive leukemias from basic ...File NF2.PNG 91px right Chromosome 22 is one of the 23 pairs of chromosome s in human cell biology cells . Humans normally have two copies of Chromosome 22 in each cell. Chromosome 22 is the second smallest human chromosome, spanning about 49 million DNA base pair s and representing between 1.5 and 2 ... announced they had determined the sequence of base pairs that make up this chromosome. Citation needed date February 2009 Chromosome 22 was the first human chromosome to be fully sequenced. Citation needed date February 2009 Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 22 contains about 693 genes. Citation needed date February 2009 Chromosome 22 was originally identified as the smallest chromosome, but after extensive research, researchers concluded that it was indeed chromosome 21. The chromosomes weren t renamed because of the popularity of chromosome 21 being known as the chromosome that can lead to Down s Syndrome ... are some of the genes located on chromosome 22 class wikitable Locus Gene Description Condition ... on chromosome 22 Amyotrophic lateral sclerosis Breast cancer Desmoplastic small round cell tumor ... conditions are caused by changes in the structure or number of copies of chromosome 22 22q11.2 deletion ... copy of chromosome 22 in each cell. The deletion occurs near the middle of the chromosome at a location ... McDermid syndrome The deletion of the distal tip of the chromosome 22 is related to moderate to severe ... more details
The P1 derived artificial chromosome are DNA construct s that are derived from the DNA of P1 phage P1 bacteriophage . They can carry large amounts about 100 300 Kilobase Length measurements kilobases of other sequences for a variety of Biological engineering bioengineering purposes. It is one type of Vector molecular biology vector used to Molecular cloning clone DNA fragments 100 to 300 kb insert size average, 150 kb in Escherichia coli cells. See also Bacterial artificial chromosome Yeast artificial chromosome Human artificial chromosome External links http www.online medical dictionary.org P1 Derived Artificial Chromosome.asp?q P1 Derived Artificial Chromosome Online Medical Dictionary P1 derived artificial chromosome http www.biochem.northwestern.edu holmgren Glossary Definitions Def P P1derived artificial chrom.html P1 derived artificial chromosome PAC definition Nucleic acids DEFAULTSORT P1 Derived Artificial Chromosome Category DNA Category Bacteriophages Category Molecular biology genetics stub biotech stub de P1 Artificial Chromosome fr Chromosome artificiel d riv du phage P1 pl Wektor PAC ... more details
For information about chromosomes in biology chromosome In genetic algorithm s, a chromosome also sometimes called a genome is a set of parameters which define a proposed solution to the problem that the genetic algorithm is trying to solve. The chromosome is often represented as a simple string computer science string , although a wide variety of other data structure s are also used. Chromosome design Unreferenced date November 2009 The article would also benefit from more relevant and clearer examples. The design of the chromosome and its parameters is by necessity specific to the problem to be solved. To give a trivial example, suppose the problem is to find the integer value of math x math between 0 and 255 that provides the maximal result for math f x x 2 math . This isn t the type of problem that is normally solved by a genetic algorithm, since it can be trivially solved using numeric methods. It is only used to serve as a simple example. Our possible solutions are the integers from 0 to 255, which can all be represented as 8 digit binary strings. Thus, we might use an 8 digit binary string as our chromosome. If a given chromosome in the population represents the value 155, its chromosome would be code 10011011 code . A more realistic problem we might wish to solve is the travelling salesman problem . In this problem, we seek an ordered list of cities that results in the shortest trip for the salesman to travel. Suppose there are six cities, which we ll call A, B, C, D, E, and F. A good design for our chromosome might be the ordered list we want to try. An example chromosome we might encounter in the population might be code DFABEC code . The mutation genetic algorithm mutation genetic operator operator and crossover genetic algorithm crossover operator employed by the genetic algorithm must take into account the chromosome s design. DEFAULTSORT Chromosome Genetic Algorithm Category Genetic algorithms ca Cromosoma algorisme gen tic de Genom genetischer Algorithmus ... more details
Unreferenced date December 2009 Chromosome 15q partial deletion is an extremely rare human genetic disorder , caused by a chromosome Chromosomal aberrations chromosomal aberration in which the long q arm of one copy of chromosome 15 is deleted, or partially deleted. If the mother s copy of the chromosomal arm is deleted, Angelman syndrome results. If the father s copy of the chromosomal arm is deleted, Prader Willi syndrome results. The smallest observed region that can result in these syndromes when deleted is therefore called the PWS AS critical region and is situated at 15q11 q13. In addition to deletions, uniparental disomy of chromosome 15 gives rise to the same genetic disorders, indicating that genomic imprinting must occur in this region. See also Chromosome 15q trisomy Genetics Genetic deletion DEFAULTSORT Chromosome 15q Partial Deletion with a huge penis Category Genetic disorders with no OMIM Genetic disorder stub ... more details
The Y Chromosome Consortium YCC is a collection of scientists who work toward the understanding of Y chromosome Human Y chromosome human Y chromosomal phylogenetics and evolution. The consortium has the following objectives web resources that communicate information relating to the non recombinant region of the Y chromosome including new variants and changes in the nomenclature . ref name urlThe Y Chromosome Consortium cite web url http ycc.biosci.arizona.edu title The Y Chromosome Consortium format work accessdate ref The consortium sponsors literature regarding updates in the phylogenetics and wikt nomenclature nomenclature . ref name pmid18385274 cite journal author Karafet TM, Mendez FL, Meilerman MB, Underhill PA, Zegura SL, Hammer MF title New binary polymorphisms reshape and increase resolution of the human Y chromosomal haplogroup tree journal Genome Res. volume 18 issue 5 pages 830 8 year 2008 month May pmid 18385274 pmc 2336805 doi 10.1101 gr.7172008 url ref ref name pmid11827954 cite journal author title A nomenclature system for the tree of human Y chromosomal binary haplogroups journal Genome Res. volume 12 issue 2 pages 339 48 year 2002 month February pmid 11827954 pmc 155271 doi 10.1101 gr.217602 url last1 Y Chromosome first1 Consortium ref References reflist Category Consortia Category Genes on chromosome Y Category Phylogenetics ... more details
A human artificial chromosome HAC is a microchromosome that can act as a new chromosome in a population of human cells. That is, instead of 46 chromosomes, the cell could have 47 with the 47th being very small, roughly 6 10 base pair megabases in size, and able to carry new genes introduced by human researchers. Yeast artificial chromosome s and bacterial artificial chromosome s were created before human artificial chromosomes, which first appeared in 1997 in science 1997 . They are useful in expression studies as gene transfer Vector molecular biology vector s and are a tool for elucidating human chromosome function. Grown in HT1080 cells, they are mitosis mitotically and cytogenetics cytogenetically stable for up to six months. History Harrington et. al . first described human artificial chromosomes ref cite pmid 9090378 ref They were first synthesized by combining portions of alpha satellite DNA with telomere telomeric DNA and genomic DNA into linear microchromosomes. Applications In 2011, a refined human artificial chromosome called 21HAC was reported. 21HAC is based on a stripped copy of human chromosome 21, producing a chromosome 5 Mb in length. ref cite pmid 21085194 ref This platform was then used to create integration free pluripotent stem cells from mouse embryonic stem cells. ref cite pmid 21998730 ref See also bacterial artificial chromosome BAC yeast artificial chromosome YAC plasmid cosmid fosmid References references Nucleic acids Category Molecular biology genetics stub biotech stub ca Cromosoma artificial hum es Cromosoma artificial humano fr Chromosome artificiel humain gl Cromosoma artificial humano pl Ludzki sztuczny chromosom zh ... more details
Chromosome instability syndromes are a group of inherited conditions associated with chromosomal instability and breakage. They often lead to an increased tendency to develop certain types of malignancies. ref cite journal author Taylor AM title Chromosome instability syndromes journal Best Pract Res Clin Haematol year 2001 pages 631 44 volume 14 issue 3 pmid 11640873 doi 10.1053 beha.2001.0158 ref The following chromosome instability syndromes are known Ataxia telangiectasia Ataxia telangiectasia like disorder Bloom syndrome Fanconi anaemia Nijmegen breakage syndrome References reflist DNA replication and repair deficiency disorder Category Chromosome instability syndromes pl Zespo y niestabilno ci chromosomalnych ... more details
Unreferenced date December 2009 Orphan date December 2009 Chromosome 15q trisomy is an extremely rare genetic disorder , caused by a chromosomal aberration in which there is an excess copy of the long q arm of human chromosome 15. The disorder is also known as Distal Duplication 15q and Partial Duplication 15q Syndrome . The disorder is primarily characterized by growth abnormalities, which range from growth retardation to accelerated growth, mental retardation , and distinctive malformations of the head anatomy head and face . Additional abnormalities may involve malformation of the skeleton , vertebral column spine and neck finger s and or toe s genital s particularly in males and, in some cases, heart problems. When accelerated growth is present, it is thought to result from the duplication of the IGF1 receptor gene. See also Chromosome 15q partial deletion Genetics DEFAULTSORT Chromosome 15q Trisomy Category Genetic disorders with no OMIM Genetic disorder stub roa rup Chromosome 15q trisomy ... more details
Image Ring chromosome.gif right thumb 200px Formation of a ring chromosome. Ring chromosome 14 syndrome is a very rare human Chromosome abnormalities chromosome abnormality . It occurs when one or both of the Telomere telomeres that mark the ends of Chromosome 14 human chromosome 14 are lost allowing the now uncapped ends to fuse together forming a Ring chromosome ring chromosome . It causes a number of serious health issues, most notably recurrent treatment resistant Epileptic seizure seizures and intellectual disability ref name AJoMG 2009 cite journal author Zollino M., Seminara L., Orteschi D., Gobbi G., Giovannini S., Della Giustina E., Frattini D., Scarano A., Neri G. title The Ring14 Syndrome Clinical and Molecular Definition year 2009 journal American Journal of Medical Genetics volume 149A issue 6 pages 1116 1124 url http www.ring14.org upload 1282121818 1.pdf ref . Cause The syndrome is caused by the Deletion genetics loss of genetic material near the end of the long arm q of chromosome 14 . The break that causes the telomere s to be lost almost never occurs exactly at the end of the chromosome. Instead, it occurs further up and several critical genes near the end of the chromosome are lost. Ring chromosome 14 syndrome is almost never inherited. The genetic abnormality occurs randomly in sperm or egg cells or it may occur in early embryonic growth. If it occurs during embryonic growth the ring chromosome may be present in only some of a person s cells i.e. Mosaic genetics Mosaicism . Symptoms The most common symptoms are intellectual disability and recurrent Epileptic seizure seizures developing in infancy or early childhood. Typically the seizures are resistant to treatment with anti epileptic drugs. Many individuals exhibit slow growth, being smaller and shorter ... of the possibility that not all cells carry the ring chromosome the karyotype analysis should examine a sufficient number of cells. Epidemiology Ring chromosome 14 syndrome is extremely rare. The true ... more details
image Chromosome 16.svg 125px right Chromosome 16 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 16 spans about 90 million base pair s the building material of DNA and represents just under 3 of the total DNA in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 16 probably contains between 850 and 1,200 genes. In February 2010, a new cause of obesity due to a microdeletion on chromosome 16 was announced. It may explain about 1 of obesity cases. This research was carried out by Professor Froguel, a CNRS researcher, in Lille, and others at Imperial College in London and Vaudois University and was published in Nature on February 4, 2010. This defect was identified using DNA microarrays and it leads to the suppression of about thirty genes in one region of chromosome 16. Research showed that this microdeletion is relatively common in obese people but lacking in most non obese people. Diseases and Disorders Trisomy 16 Familial Mediterranean fever FMF Crohn s disease Thalassemia Autosomal dominant polycystic kidney disease PKD 1 Autism Schizophrenia ref http www.sciencedaily.com releases 2009 10 091025162454.htm ref External links http www.ncbi.nlm.nih.gov bookshelf br.fcgi?book gene&part del16p11 2 GeneReview NCBI NIH UW entry on 16p11.2 Deletion Syndrome References reflist cite journal author Gilbert F title Disease genes and chromosomes disease maps of the human genome. Chromosome 16 journal Genet Test year 1999 pages 243 ... rich human chromosome 16 journal Nature year 2004 pages 988 94 volume 432 issue 7020 pmid ... Chromosome 16 Human Category Chromosomes genetics stub ca Cromosoma 16 de Chromosom 16 Mensch es Cromosoma 16 humano fr Chromosome 16 humain it Cromosoma 16 umano hu Hum n 16 os kromosz ma nl Chromosoom ... more details
Image chromosome 2.svg 125px right Chromosome 2 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 2 is the second largest human chromosome ... chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome ... vega.sanger.ac.uk Homo sapiens mapview?chr 2 Vega Homo sapiens Overview of Chromosome 2 Bot generated ... of the Chromosome 2 fusion site Genes of the Chromosome 2 fusion site in chimpanzees All members of Hominidae ... chromosome 2 is widely accepted to be a result of an end to end fusion of two ancestral chromosomes. ref name fusion http www.evolutionpages.com chromosome 2.htm Human Chromosome 2 is a fusion of two ... x WAHpC0Ah0 Evidence of Common Ancestry Human Chromosome 2 video 2007 ref Image Chromosome2 merge.png ... centromere The evidence for this includes The correspondence of chromosome 2 to two ape chromosomes. The closest human relative, the chimpanzee , has near identical DNA sequences to human chromosome ... structure vestigial centromere . Normally a chromosome has just one centromere, but in chromosome ... Evidence for an ancestral alphoid domain on the long arm of human chromosome 2 journal Human Genetics ... of vestigial telomere s. These are normally found only at the ends of a chromosome, but in chromosome ... author IJdo title Origin of human chromosome 2 an ancestral telomere telomere fusion journal Proceedings ... RA issue 20 pmc 52649 display authors 1 ref Chromosome 2 presents very strong evidence in favour ... the point at which two ancestral ape chromosomes fused to give rise to human chromosome 2. ref name telomeres Genes Among the genes located on chromosome 2 are these AGXT alanine glyoxylate aminotransferase ... peroxidase Genes located on the short arm of this chromosome include ALMS1 ABCG5 and ABCG8 ATP binding ... arm of this chromosome include ABCA12 ATP binding cassette, sub family A ABC1 , member 12 ... more details
image Chromosome 9.svg 125px right Chromosome 9 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome, as they normally do with all chromosomes. Chromosome 9 spans about 145 million base pair s of nucleic acids the building blocks of DNA and represents between 4 and 4.5 percent of the total DNA in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 9 likely contains between 800 and 1,200 genes. Genes The following are some of the genes located on chromosome 9 ABO blood group system ABO ABO histo blood group glycosyltransferases ADAMTS13 ADAM metallopeptidase with thrombospondin type 1 motif, 13 ALAD aminolevulinate, delta , dehydratase ALS4 amyotrophic lateral sclerosis 4 ASS gene ASS argininosuccinate synthetase CCL21 chemokine C C motif ligand 21, SCYA21 CCL27 chemokine C C motif ligand 27, SCYA27 COL5A1 collagen, type V, alpha 1 ENG gene ENG endoglin Osler Rendu Weber syndrome 1 FXN frataxin GALT gene GALT galactose 1 phosphate uridylyltransferase GLE1L Nucleoporin GLE1 GRHPR glyoxylate redasductase hydroxypyruvate reductase IKBKAP inhibitor of kappa ... t Diseases & disorders The following diseases are some of those related to genes on chromosome 9 acytosiosis ... of the human genome. Chromosome 9 journal Genet Test year 2001 pages 157 74 volume 5 issue 2 pmid ... of human chromosome 9 journal Nature year 2004 pages 369 74 volume 429 issue 6990 pmid 15164053 ... B title Fine genetic mapping of the gene for nevoid basal cell carcinoma syndrome. Chromosome ... title The assignment the lethal congenital contracture syndrome LCCS locus to chromosome 9q33 34 journal ... Chromosomes Category Chromosomes Chromosome 09 ca Cromosoma 9 de Chromosom 9 Mensch es Cromosoma 9 humano fr Chromosome 9 humain it Cromosoma 9 umano hu Hum n 9 es kromosz ma nl Chromosoom 9 no Kromosom ... more details
Image Chromosome 20.svg 125px right Chromosome 20 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 20 spans around 63 million base pair s the building material of DNA and represents between 2 and 2.5 percent of the total DNA in cell biology cells . Chromosome 20 was fully sequenced in 2001 and contained 59,187,298 base pairs representing 99.4 of the euchromatic DNA. ref name Deloukas2001 cite journal author Deloukas P, et al. title The DNA sequence and comparative analysis of human chromosome 20 journal Nature year 2001 pages 865 871 volume 414 issue 6866 pmid 11780052 doi 10.1038 414865a ref Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Citation needed date April 2009 Chromosome 20 contains over 900 genes. New discoveries When date February 2011 have recently linked this chromosome to the increasing susceptibility to male pattern baldness. Citation needed date April 2009 Genes The following are some of the genes located on chromosome 20 Adenosylhomocysteinase AHCY S adenosylhomocysteine hydrolase ARFGEF2 ADP ribosylation factor guanine nucleotide exchange factor 2 brefeldin A inhibited Bone morphogenetic protein 2 BMP2 Bone Morphogenetic Protein 2 osteoblast differentiation DNAJC5 Cysteine string protein EDN3 endothelin 3 Glutathione synthetase GSS glutathione synthetase Gs alpha subunit GNAS1 Gs alpha subunit membrane G protein JAG1 jagged 1 Alagille ... of those related to genes on chromosome 20 ref name Gilbert1997 cite journal author Gilbert F ...,loc&LINKS ON&VERBOSE ON&CHR 20 Human Chromosome 20 Map Viewer &mdash on NCBI Chromosomes DEFAULTSORT Chromosome 20 Human Category Chromosomes genetics stub bg 20 ca Cromosoma 20 de Chromosom 20 Mensch et 20. kromosoom es Cromosoma 20 humano fr Chromosome 20 humain gl Cromosoma 20 ... more details
Y chromosome microdeletion YCM is a family of genetic disorder s caused by missing gene s in the Y chromosome . Many men with YCM exhibit no symptoms and lead normal lives. However, YCM is also known to be present in a significant number of men with reduced fertility . ref Carlo Foresta, et al. http edrv.endojournals.org cgi content full 22 2 226 Y chromosome microdeletions and alterations of spermatogenesis ... of mutation is not different for Y chromosome microdeletion. However, the ability to repair it differs from other chromosomes. The human Y chromosome is passed directly from father to son, and is not protected ... repair mechanism for the Y chromosome. Diagnosis Y chromosome microdeletion is currently ... 300 known genetic marker s for sequence tagged site s STS on the Y chromosome, and then using polymerase ... of a tiny part of the overall 23 million base pair long Y chromosome, therefore the sensitivity ... only discover certain types of deletions and mutations on a chromosome and give therefore no complete ..., but not the absence of any possible genetic defect on the chromosome. The gold standard test for genetic mutation, namely complete DNA sequencing of a patient s Y chromosome, is still far too expensive ... chromosome have been found at a much higher rate in infertile men than in fertile controls ref name pmid16157049 cite journal author Song NH, Wu HF, Zhang W, et al. title Screening for Y chromosome ... testing techniques for the Y chromosome are developed. Much study has been focused upon the azoospermia ... Additional genes associated with spermatogenesis in men and reduced fertility upon Y chromosome deletions ... Acta Med Port year 1998 month April volume 11 issue 4 pages 365 72 title Y chromosome and male infertility ... NCBI NIH UW entry on Y Chromosome Infertility http cas.bellarmine.edu tietjen Ecology y chromosome as a battle ground .htm Bellarmine College The Y chromosome as a battle ground for sexual selection See also Infertility AZF1 Category Andrology Category Sex chromosome aneuploidies genetics stub disease ... more details
image Chromosome 15.jpeg right frame Human chromosome 15 Chromosome 15 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 15 spans about 106 ... in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 15 likely contains between 700 and 900 genes. Genes The following are some of the genes located on chromosome 15 CAPN3 Calpain 3 limb girdle muscular dystrophy ... are caused by mutations in chromosome 15. Two of the conditions Angelman syndrome and Prader Willi syndrome involve a loss of gene activity in the same part of chromosome 15, the 15q11 q13 region ... of DNA on human chromosome 15 could lead to two different syndromes depending on whether the deletion ... of gene activity in a specific part of chromosome 15, the 15q11 q13 region. This region contains ... in the maternal copy of chromosome 15. This chromosomal change deletes the region of chromosome ... the paternal copy is normally inactive in the brain, a deletion in the maternal chromosome 15 ... September 2009 Angelman syndrome occurs when a person has two copies of the paternal chromosome 15 ... with paternal UPD for chromosome 15 have two copies of the UBE3A gene, but they are both inherited ... the activation of the UBE3A gene and other genes on the maternal copy of chromosome 15. In a small ... Prader Willi syndrome is caused by the loss of active genes in a specific part of chromosome 15, the 15q11 q13 region. People normally have two copies of this chromosome in each cell, one ... the 15q11 q13 region of the paternal chromosome 15 is deleted. The genes in this region are normally active on the paternal copy of the chromosome and are inactive on the maternal copy. Therefore, a person with a deletion in the paternal chromosome 15 will have no active genes in this region. In about ... more details
Image Chromosome 1.svg thumb Map of Chromosome 1 alt Map of Chromosome 1 125px right Chromosome 1 is the designation for the largest human chromosome . Humans have two copies of chromosome 1, as they do with all of the autosome s, which are the non sex chromosome s. Chromosome 1 spans about 249 million ... Homo sapiens mapview?chr 1 Chromosome size and number of genes derived from this database ... annotation of human chromosome 1 journal Nature volume 441 issue 7091 pages 315 21 year 2006 month May pmid 16710414 doi 10.1038 nature04727 ref Identifying gene s on each chromosome is an active area of genetics genetic research . Chromosome 1 is currently thought to have 4,316 genes, exceeding previous predictions based on its size. ref name vega It was the last completed chromosome, sequenced ... Genes The following are some of the genes located on chromosome 1 p arm Image Chromarms.gif thumb Short ... recessive, mild According to http www.ornl.gov sci techresources Human Genome posters chromosome chromo01.shtml the Chromosome 1 contains 263 million base pairs Diseases & disorders There are 890 known diseases related to this chromosome. Some of these diseases are deafness, Alzheimer disease, glaucoma and breast cancer. Rearrangements and mutations of chromosome 1 are prevalent in cancer and many ... diseases are some of those related to genes on chromosome 1 which contains the most known genetic disease s of any human chromosome 1q21.1 deletion syndrome 1q21.1 duplication syndrome Alzheimer disease ..., O Brien SJ, Stanyon R title The Origin of Human Chromosome 1 and Its Homologs in Placental Mammals ... chromosome 1 mapping 2000. Iowa City, Iowa, USA. 30 September 3 October 2000 journal Cytogenet Cell ... Institutes of Health title Chromosome 1 work Genetics Home Reference url http ghr.nlm.nih.gov chromosome 1 accessdate May 17, 2006 http today.reuters.com news newsArticle.aspx?type scienceNews&storyID ... 4994088.stm Final genome chapter published BBC NEWS Chromosomes DEFAULTSORT Chromosome 1 Human ... more details
image Chromosome 18.svg 125px right Chromosome 18 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 18 spans about 85 million base pair s the building material of DNA and represents about 2.5 percent of the total DNA in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 18 likely contains between 300 and 400 genes. Genes The following are some of the genes located on chromosome 18 Ferrochelatase FECH ferrochelatase protoporphyria NPC1 Niemann Pick disease, type C1 SMAD4 SMAD, mothers against DPP homolog 4 Drosophila yes, SMAD really does contain mothers against KC6 Keratoconus gene 6, discovery reported in 2005 Diseases & disorders The following diseases are some of those related to genes on chromosome 18 erythropoietic protoporphyria hereditary hemorrhagic telangiectasia Niemann Pick disease Type C porphyria Selective Mutism Edwards syndrome Edwards syndrome Trisomy 18 Tetrasomy 18p Monosomy 18p Pitt Hopkins Syndrome Pitt Hopkins Syndrome 18q21 References cite journal author Nusbaum C, Zody MC, Borowsky ML, Kamal M, Kodira CD, Taylor TD, Whittaker CA, Chang JL, Cuomo CA, Dewar K, FitzGerald MG, Yang X, Abouelleil A, Allen NR, Anderson S, Bloom T, Bugalter B, Butler J, Cook A, DeCaprio D, Engels R, Garber M, Gnirke A, Hafez N, Hall JL, Norman CH, Itoh T, Jaffe DB, Kuroki Y, Lehoczky J, Lui A, Macdonald P, Mauceli E, Mikkelsen ... BW, Sakaki Y, Lander ES title DNA sequence and analysis of human chromosome 18 journal Nature year ... CA, McInnis MG title Trapping and sequence analysis of 1138 putative exons from human chromosome 18 .... Chromosome 18 journal Genet Test year 1997 pages 69 71 volume 1 issue 1 pmid 10464628 External ... 18 Mensch es Cromosoma 18 humano fr Chromosome 18 humain it Cromosoma 18 umano hu Hum n 18 as kromosz ma ... more details
Image Chromosome 7.svg 125px right Chromosome 7 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 7 spans more than 158 million base pair ... cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 7 is likely to contain between 1,000 and 1,400 genes. It also contains ... to genes on chromosome 7 argininosuccinic aciduria cerebral cavernous malformation Charcot Marie ... are caused by changes in the structure or number of copies of chromosome 7 Williams syndrome is caused by the deletion of genetic material from a portion of the long q arm of chromosome 7. The deleted ... syndrome is unknown. Other changes in the number or structure of chromosome 7 can cause delayed ... speech, and other medical problems. These changes include an extra copy of part of chromosome 7 in each cell partial trisomy 7 or a missing segment of the chromosome in each cell partial monosomy 7 . In some cases, several DNA building blocks nucleotides are deleted or duplicated in part of chromosome 7. A circular structure called ring chromosome 7 is also possible. A ring chromosome occurs when both ends of a broken chromosome are reunited. References div class references small cite journal author Gilbert F title Chromosome 7 journal Genet Test year 2002 pages 141 61 volume 6 issue 2 pmid ... EE, Green ED, Waterston RH, Wilson RK title The DNA sequence of human chromosome 7 journal Nature year ... chromosome 7 mosaicism case report, investigation of the gene content, and delineation of the phenotype ... Human chromosome 7 DNA sequence and biology journal Science year 2003 pages 767 72 volume 300 issue ... SM, Kukolich MK, Lockhart LH, Tonk VS title De novo supernumerary ring chromosome 7 first report of a non ... Chromosome 07 ca Cromosoma 7 de Chromosom 7 Mensch es Cromosoma 7 humano fr Chromosome 7 ... more details
About a chromosome the novel of the same name Chromosome 6 novel Image Chromosome 6.svg 125px right Chromosome 6 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 6 spans more than 170 million base pair s the building material of DNA and represents between 5.5 and 6 of the total DNA in cell biology cells . It contains the Major Histocompatibility Complex , which contains over 100 genes related to the immune response , and plays a vital role in organ transplantation . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 6 likely contains between 2,000 and 2,057 genes. ref http www.ncbi.nlm.nih.gov projects mapview maps.cgi?TAXID 9606&CHR 6&MAPS ideogr,genes 17536196.70 3A34647703.30 &QSTR HFE&QUERY uid 28 2100351222, 2100349927, 2100345356, 2100345070, 2100338650, 2100244354, 2100240158, 2100219598, 2100214747, 2100214240, 2100204836, 2100181489, 2100141136, 2100135106, 2100113614, 2100021268, 2100017302, 2099931215, 2099823018, 2099778923 29& ZOOM 100 ref Genes The following are some of the genes located on chromosome 6 BCKDHB branched chain keto acid dehydrogenase E1, beta polypeptide maple syrup urine disease CNR1 cannabinoid 1 receptor ref Matsuda, L A, S J Lolait, M J Brownstein, A C Young, and T I Bonner. Structure of a cannabinoid receptor ... The following diseases are some of those related to genes on chromosome 6 ankylosing spondylitis ... ghr.nlm.nih.gov chromosome 6 public domain cite journal author Gilbert F title Chromosome 6 journal ... journal author Mungall AJ et alii title The DNA sequence and analysis of human chromosome 6 journal ... Category Chromosomes Chromosome 06 genetics stub ar 6 bs Hromozom 6 ovjek ca Cromosoma 6 de Chromosom 6 Mensch es Cromosoma 6 humano fr Chromosome 6 humain gl Cromosoma 6 it Cromosoma 6 ... more details
Image Chromosome 13.jpeg right Chromosome 13 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 13 spans about 114 million base pair s the building material of DNA and represents between 3.5 and 4 of the total DNA in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 13 likely contains between 300 and 700 genes. Fact date October 2008 Genes The following are some of the genes located on chromosome 13 ATP7B ATPase, Cu transporting, beta polypeptide Wilson disease BRCA2 breast cancer 2, early onset CARKD Carbohydrate Kinase Domain Containing ... of those related to genes on chromosome 13 Bladder cancer Breast cancer Heterochromia Hirschsprung s disease ... by changes in the structure or number of copies of chromosome 13 Retinoblastoma A small percentage of retinoblastoma cases are caused by deletions in the region of chromosome 13 13q14 containing ... 13 Trisomy 13 occurs when each cell in the body has three copies of chromosome 13 instead of the usual two copies. Trisomy 13 can also result from an extra copy of chromosome 13 in only some of the body ... of chromosomal material between chromosome 13 and another chromosome. As a result, a person has the two usual copies of chromosome 13, plus extra material from chromosome 13 attached to another chromosome. These cases are called translocation trisomy 13. Extra material from chromosome 13 disrupts ... that results when a piece of the long arm q of chromosome 13 is missing monosomic . Infants born ... and analysis of human chromosome 13 journal Nature year 2004 pages 522 8 volume 428 issue 6982 pmid 15057823 doi 10.1038 nature02379 pmc 2665288 cite journal author Gilbert F title Chromosome 13 journal ... 13 de Chromosom 13 Mensch et 13. kromosoom es Cromosoma 13 humano fr Chromosome 13 humain gl Cromosoma ... more details
File Chromosome 12.svg 125px right Chromosome 12 is one of the 23 pairs of chromosome s in human s. People normally have two copies of this chromosome. Chromosome 12 spans about 143 million base pair s the building material of DNA and represents between 4 and 4.5 percent of the total DNA in cell biology cells . Identifying gene s on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 12 likely contains between 1,000 and 1,300 genes. It also contains the Homeobox C gene cluster. Genes The following are some of the genes located on chromosome 12 Obed M. Ha ACVRL1 activin A receptor type II like 1 heterochromatin protein 1 CBX5 chromobox homolog 5 COL2A1 collagen, type II, alpha 1 primary osteoarthritis, spondyloepiphyseal dysplasia, congenital HPD gene HPD 4 hydroxyphenylpyruvate dioxygenase KCNA1 potassium voltage gated channel subfamily A member 1 at 12p13.32 KERA gene KERA keratocan LRRK2 leucine rich repeat kinase 2 MMAB methylmalonic aciduria cobalamin dewrong ficiency cblB type MYO1A myosin IA Nanog transcription factor NANOG NK 2 type homeodomain gene PAH gene PAH phenylalanine hydroxylase PPP1R12A protein phosphatase 1, regulatory inhibitor subungfdit 12A PTPN11 protein tyrosine phosphatase, non receptor type 11 Noonan syndrome 1 KRAS V Ki ras2 Kirsten rat sarcoma viral oncogene homolog Diseases & disorders The following diseases are some of those related to genes on chromosome 12 achondrogenesis type 2 collagenopathy, types II and XI cornea plana 2 episodic ataxia hereditary hemorrhagic telangiectasia hypochondrogenesis ... significant linkage to stuttering on chromosome 12 journal Am. J. Hum. Genet. volume 76 issue 4 pages ... title A high resolution map of human chromosome 12 journal Nature year 2001 pages 945 6 volume 409 ... 12 de Chromosom 12 Mensch es Cromosoma 12 humano fr Chromosome 12 humain it Cromosoma 12 umano ... more details
CEN for chromosome segregation during cell division, telomere and origin of replication ori were ... Human artificial chromosome Autonomously replicating sequence ARS References reflist External links MeshName Yeast Artificial Chromosomes Nucleic acids DEFAULTSORT Yeast Artificial Chromosome Category ... Chromosome es Cromosoma artificial de levadura fr Chromosome artificiel de levure it Yeast artificial chromosome zh ... more details
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