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From Wikipedia, the free encyclopedia

An autosome is a chromosome that is not a sex chromosome – that is to say there are an equal number of copies of the chromosome in males and females.[1] For example, in humans, there are 22 pairs of autosomes, and in addition there are X and Y chromosomes which are sex chromosomes.

Human chromosomes
Female (XX) Male (XY)
PLoSBiol3.5.Fig7ChromosomesAluFish.jpg
Human male karyotpe.gif
The 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.

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Genealogy

Up to date as of February 01, 2010
(Redirected to Autosome article)

From Familypedia

An autosome is a non-sex chromosome. It is an ordinarily paired[1] type of chromosome that is the same in both sexes of a species. For example, in humans, there are 22 pairs of autosomes. The X and Y chromosomes are not autosomal. Non-autosomal chromosomes are usually referred to as sex chromosomes, allosomes or heterosomes.

Notes

  1. ^ In the case of higher ploidy levels than the usual diploid, there will be the same number of an autosome as the ploidy level itself. For example, in a pentaploid, there will be five copies of each autosome.

See also

External links


This page uses content from the English language Wikipedia. The original content was at Autosome. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

This article uses material from the "Autosome" article on the Genealogy wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

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