Examine the amino acid sequence from three organisms (A, B, and C). Which two organisms are the most closely related?
Organism A: Val-Ser-Thr-Val
Organism B: Leu-Ala-Leu-Ala
Organism C: Val-Ser-Asp-Met
(1 point)
a. B and C
b. They are all equally related.
c. A and B
d. A and C
1 answer
Organism A and Organism C are the most closely related as they both share the amino acid Val and Ser in their sequences. Organism B is more distantly related as its sequence does not share any amino acids with either Organism A or C. Therefore, the answer is d. A and C.