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Chromosome 18 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. People normally have two copies of this chromosome. Chromosome 18 spans about 80 million base pairs (the building material of DNA ) and represents about 2.5 percent of the total DNA in cells .
Karyotype of a person with trisomy 18. Three copies of the Chromosome 18 are detected. Trisomy 18 is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on the 18th chromosome, either in whole (trisomy 18) or in part (such as due to translocations). The additional chromosome usually occurs before ...
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This is an accepted version of this page This is the latest accepted revision, reviewed on 22 February 2025. DNA molecule containing genetic material of a cell This article is about the DNA molecule. For the genetic algorithm, see Chromosome (genetic algorithm). Chromosome (10 7 - 10 10 bp) DNA Gene (10 3 - 10 6 bp) Function A chromosome and its packaged long strand of DNA unraveled. The DNA's ...
Human protein-coding gene pages: •Python code for maintaining the list •List of human protein-coding genes page 1 covers genes A1BG–EPGN •List of human protein-coding genes page 2 covers genes EPHA1–MTMR3
Tetrasomy 18p is caused by the presence of an additional isochromosome composed of two copies of the p arm of chromosome 18. [4] This extra chromosome is classified as a small supernumerary marker chromosome that forms de novo in a parent's egg or sperm or, in rare cases, is directly inherited from a parent carrier of the intact small ...
Random article; About Wikipedia; Contact us; Contribute Help; Learn to edit; ... Pages in category "Genes on human chromosome 18" The following 175 pages are in this ...
4864 18145 Ensembl ENSG00000141458 ENSMUSG00000024413 UniProt O15118 O35604 RefSeq (mRNA) NM_000271 NM_008720 RefSeq (protein) NP_000262 NP_032746 Location (UCSC) Chr 18: 23.51 – 23.59 Mb Chr 18: 12.32 – 12.37 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse NPC1 gene is located on the long (q) arm of chromosome 18 at position 11.2. Niemann-Pick disease, type C1 (NPC1) is a ...