alleryStart learning →A human somatic cell carries 46 chromosomes. How are those 46 made up?
A22 matched pairs plus two sex chromosomes
B23 matched pairs and no sex chromosomes
C46 matched pairs plus two sex chromosomes
D11 matched pairs plus two sex chromosomes
Answer & Solution
Correct answer: A. 22 matched pairs plus two sex chromosomes
1. The non sex chromosomes are the autosomes, and they come in matched pairs.
2. Humans have 22 such pairs, which is 44 chromosomes.
3. Adding the two sex chromosomes brings the total to 46.
4. Saying 23 matched pairs leaves out the fact that the sex chromosomes need not match.
_Source: OpenStax Biology 1e (CC BY 4.0), Chs 10 and 11, section 10.1 Cell Division_
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