autosome
American Heritage Dictionary:
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au·to·some
(ô'tə-sōm') 
n.
A chromosome that is not a sex chromosome.
autosomal au'to·so'mal (-sō'məl) adj.
autosomally au'to·so'mal·ly adv.
n.
A chromosome that is not a sex chromosome.
autosomal au'to·so'mal (-sō'məl) adj.
autosomally au'to·so'mal·ly adv.
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autosome
Biology Q&A:
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What are autosomes?
Autosomes are chromosomes that contain information (gene
sequences) available to both sexes. These are the chromosomes commonly used in
genetic examples.
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What are homologous chromosomes?
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What are sex chromosomes?
Oxford Dictionary of Biochemistry:
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autosome
any chromosome except the sex chromosomes. Hence the genes carried by the autosomes show autosomal linkage (or autosomal inheritance) according to the assortment of their respective autosomes to gamete cells during meiosis. Humans have 22 pairs of autosomes in addition to a pair of sex chromosomes.
| autosomal limb girdle dystrophy, autosomal dominant polycystic kidney disease, autosomal disease | |
| autosteric effector, autotroph, autoxidation |
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categories related to 'autosome'
- Genetics, Heredity, and Evolution - autosome: any chromosome not carrying sex information
Wikipedia on Answers.com:
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Autosome
This article is about a type of chromosome. For the ancestral discovery method using autosomal DNA, see Genealogical DNA test#Geographic origin tests.
An autosome is a chromosome that is not an allosome.[1] (An allosome is also called a sex chromosome). For example, in humans there are typically 22 pairs of autosomes and one allosome pair. Two X chromosomes or one X and one Y chromosome make up the 23rd chromosome pair which determines sex, female (XX) or male (XY). (Atypically XYY, XXY, XXX, XXXX, XXXXX or XXYY, among other allosome combinations, are known to occur. Most of these cause developmental abnormalities.) It is labeled in the pictures below as XX and X/Y, unlike the other pairs which are labeled with letters.
| Human chromosomes | |
|---|---|
| Female (XX) | Male (XY) |
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| There are two copies of each autosome (chromosomes 1-22) in both females and males. The sex chromosomes are different: There are two copies of the X-chromosome in females, but males have a single X-chromosome and a Y-chromosome. | |
See also
References
- ^ Griffiths, Anthony J. F. (1999). An Introduction to genetic analysis. New York: W.H. Freeman. ISBN 0-7167-3771-X. http://www.ncbi.nlm.nih.gov/books/bv.fcgi?highlight=autosome&rid=iga.section.222.
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