Autosomal

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Female human karyotype
The term autosomal is used to describe certain chromosomes within a karyotype that code for the production of various proteins. Autosomal chromosomes appear in pairs whereby each chromosome is genetically identical to its paired chromosome. Any chromosomes in a karyotype that are not autosomal are described as allosomal. Allosomal chromosomes are sex chromosomes which are responsible for sex determination[1].

In humans there are 23 pairs of chromosomes, 22 of which are autosomal. The other pair are allosomal and determine sex (X and Y chromosomes).

References

  1. Tutorvista. Autosomes and allosomes.[cited 06/12/17]. Available from http://www.tutorvista.com/content/biology/biology-iii/chromosomes/autosomes-and-allosomes.php
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