Autosomes

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)

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.

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↑ 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.

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[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.

[1]

v·d·e Genetics: chromosomes
General	Karyotype - Ploidy - Meiosis
Classification	Autosome - Sex chromosome
Evolution	Chromosomal inversion - Chromosomal translocation - Polyploidy - Paleopolyploidy
Structure	Chromatin (Euchromatin, Heterochromatin) Histone (H1, H2A, H2B, H3, H4) Centromere (A, B, C1, C2, E, F, H, I, J, K, M, N, O, P, Q, T] Nucleosome - Telomere - Chromatid

Autosomes

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References[]

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