The amino acid sequence of a certain blood protein was compared among four organisms. The percentage match shared by two organisms can be found at the intersection of each row and column in the table below.
Comparison: Percentage Match of
Blood Protein Among Four Organisms
Organism A B C D
A 76% 65% 60%
B 76% 85% 51%
C 65% 85% 77%
D 60% 51% 77%
Based on the information in the table, which two organisms have the most recent common ancestor?
A.
D and C
B.
C and B
C.
A and B
D.
B and D
D. B and D
The two organisms with the highest percentage match are B and D, with a match of 51%. This indicates that they have the most recent common ancestor compared to the other organisms.