When comparing the gene coding for cytochrome c in several species, it was noted that humans and chimpanzees share the identical amino acid sequence with a change in only one location. This means that
A) humans and chimpanzees can mate and produce viable offspring.
B) humans evolved from chimpanzees.
C) over time, chimpanzees will eventually evolve into primitive humans.
D) humans and chimpanzees are closely related in evolutionary time.
E) there is nothing particularly informative about this discovery.

Question

Quizplus · Accepted Answer

Humans and chimpanzees sharing an almost identical amino acid sequence for cytochrome c indicates a close evolutionary relationship, suggesting they have a recent common ancestor.

When Comparing the Gene Coding for Cytochrome C in Several