The alignment of the amino acid sequences of a protein from different species

Question

Quizplus · Accepted Answer

The alignment of amino acid sequences of a protein from different species may be complicated by the presence of insertions, and it can be used to calculate evolutionary divergence. Thus, both option A and D are correct, making option E the best choice. Option B is incorrect because the total number of substitutions cannot always be determined solely through sequence alignment. Option C is incorrect because different proteins evolve at different rates, so amino acid sequence alignment cannot be used as a general molecular clock.

The Alignment of the Amino Acid Sequences of a Protein