Volpe's Understanding Evolution 7th Edition by Peter Rosenbaum

Exercise 16

Chimps have 48 chromosomes and humans have 46 chromosomes. Recently, we learned that the reason for this difference is due to:
A) The loss of two chromosomes.
B) The fusion of two chromosomes
C) The inversion and later translocation of two chromosomes
D) The deletion of parts of two chromosomes and their subsequent rejoining
E) A polyploidy event.