The following phylogeny shows six living species (a-f) and five ancestral (now extinct) species (#1-5) . If the phylogeny had been developed on the basis of similarities in bone structure, which of the following predictions would you make in terms of the structure of a particular enzyme?

Question

Quizplus · Accepted Answer

If the phylogeny had been developed on the basis of similarities in bone structure, then it is likely that species with similar bone structures also have similar enzymes. From the phylogeny, we can see that species b and c are more closely related to ancestor #4 than to ancestor #2, so their enzymes are likely to be more similar to those of ancestor #4. Therefore, option B is the best choice. Options A, C, and D cannot be directly inferred from the given information.

The Following Phylogeny Shows Six Living Species (A-F)and Five Ancestral