Which one of the following factors was probably most involved with the reduced sense of smell in humans compared with the other great apes?
A)pseudogenes
B)conservation of synteny
C)aneuploidy
D)humans have one more chromosome than the other great apes
E)number of olfactory receptor (OR)genes present in the genome

Question

Quizplus · Accepted Answer

The reduced sense of smell in humans compared to other great apes is largely due to the presence of a higher number of pseudogenes in the olfactory receptor gene family, which are non-functional genes that were once functional in ancestral species.

Which One of the Following Factors Was Probably Most Involved