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What are autosomes?

GeneticsChromosomes

Quick Answer

Autosomes are the chromosomes that do not determine biological sex. Humans have 22 pairs of autosomes.

The Full Story

Autosomes are the non-sex chromosomes in a species’ genome. In humans, there are 22 pairs of autosomes and one pair of sex chromosomes, making 46 chromosomes in most cells. Autosomes carry most of the genes involved in body structure, metabolism, and many inherited traits. They are named and numbered roughly from largest to smallest.

Key Facts

1.Humans have 22 pairs of autosomes
2.Autosomes are chromosomes 1 through 22 in humans
3.They carry most human genes

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Suggested video title for this topic:

"The 22 chromosome pairs that do most of the work"