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BIO 101 BIO 101 Past Questions Objective Question

Question

A human somatic cell has 46 chromosomes. What ploidy is this, and how does it relate to gametes?
Options
A Tetraploid; gametes have 92 chromosomes
B Diploid; gametes contain half, or 23 chromosomes
Correct Answer
C Haploid; gametes have equal chromosome numbers
D Aneuploid; gametes are identical to somatic cells
Correct Answer

Option B is the correct answer.

Detailed Explanation

A somatic cell with 46 chromosomes is diploid (2n=46). Gametes are haploid (n) and contain half that number, which is 23 chromosomes in humans.

Hint

The diploid number is the full somatic count; the haploid number is half.

Question Info