How many autosomes are present in the human genome?

How many autosomes are present in the human genome?

• A. 46
• B. 44
• C. 22
• D. 24

Answer: (B)

Autosomes are the non-sex chromosomes, and in humans they come in twenty-two pairs. That means there are forty-four autosomes in each somatic cell. The rest of the genome includes a pair of sex chromosomes, so the total number of chromosomes in a typical human cell is forty-six. In gametes, there are twenty-two autosomes plus one sex chromosome, totaling twenty-three chromosomes. So the number of autosomes is forty-four.

Autosomes are the non-sex chromosomes, and in humans they come in twenty-two pairs. That means there are forty-four autosomes in each somatic cell. The rest of the genome includes a pair of sex chromosomes, so the total number of chromosomes in a typical human cell is forty-six. In gametes, there are twenty-two autosomes plus one sex chromosome, totaling twenty-three chromosomes. So the number of autosomes is forty-four.