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Humans Have 23 Pairs of Chromosomes and Chimps Have 24

Question 19

Multiple Choice

Humans have 23 pairs of chromosomes and chimps have 24 pairs. How has this difference best been explained?


A) Humans and chimps are not related.
B) Chimps gained a chromosome during their evolution, which explains why they differ from humans.
C) Humans and chimps share very little genetic material.
D) Humans have one chromosome that is the result of a fusion of two chromosomes in our ancestors.

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