A normal human somatic cell contains:
A22 pairs of autosomes + 1 pair of sex chromosomes (23 pairs total)
B23 pairs of autosomes + 1 pair of sex chromosomes (24 pairs total)
C22 pairs of autosomes + 2 pairs of sex chromosomes
D46 pairs of autosomes
Answer & Solution
Correct answer: A. 22 pairs of autosomes + 1 pair of sex chromosomes (23 pairs total)
Human diploid karyotype: 46 chromosomes = 22 pairs of autosomes + 1 pair of sex chromosomes (XX in females, XY in males). Gametes have the haploid 23.
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