Question

You have three species A, B, and C. Assume that they form a monophyletic group

Answer 1

Answer:

1 and 6 are correct

Explanation:

1. A and B are probably closely related - true, as reflected by their close gene sequences which usually represents a very close genetic relationship

2. B and C are probably closely related  - false, if their gene sequences are very different then they are probably not so closely related

3. A and C are probably closely related  - false, we know A and B are close, and B and C are very different, therefore A is probably also very different

4. B is probably an outgroup while A and C are sister taxa  - false, A and B are highly similar

5. A is probably an outgroup while B and C are sister taxa  - false, B and C are very different genetically

6. C is probably an outgroup while A and B are sister taxa - true, we know A and B share similar gene sequences, whereas C is distinct.