👉 In genetics, an "autosome" is a chromosome that does not have a specific function in the body. Autosomes are found on the sex chromosomes in males and females, but they do not play any role in reproduction or development. They are typically smaller and more rounded than other chromosomes, and their presence can be seen in the X and Y chromosomes of males and females. The presence of an autosome does not affect a person's health, fertility, or genetic traits.