All mammals have hemoglobin,but the amino acid sequences are not identical.The human sequence differs from that of the baboon,dog,gorilla,and lemur by seven,ten,one,and seven amino acids,respectively.Based on this comparative DNA analysis,which of these animals most recently shared a common ancestor with humans?

Question

Quizplus · Accepted Answer

The animal with the least number of amino acid differences from humans is the gorilla with only one difference. This suggests that humans and gorillas shared a common ancestor more recently than humans and the other three animals with higher numbers of amino acid differences.

All Mammals Have Hemoglobin,but the Amino Acid Sequences Are Not