definition of autosomal in biology
An autosome is a non-sex chromosome. It is an ordinary paired 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. An autosome is one of the 22 numbered pairs of chromosomes that most of us carry in almost all of the cells of our body. Autosome A chromosome other than the sex-chromosome, or sex-deter-mining chromosome.