Humans and Chimpanzees Last Shared a Common Ancestor Around _____

Multiple Choice

Humans and chimpanzees last shared a common ancestor around _____ million years ago, and our genomes now differ by about _____%.

A) 5-7; 1
B) 5-7; 10
C) 10-20; 1
D) 10-20; 10
E) 20-50; 50