First midterm examples

First midterm examples - Example questions for first...

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Example questions for first midterm (all are from previous Biology 5B exams) Two biologists, Jane and Joe, examine the characteristics of 5 animal species (A, B, C, D, E), and each creates a phylogenetic tree based on their understanding of the most likely relationships between these animals: A B C D E A E Joe’s tree Jane’s tree B C D 1. Which of the following statements about the phylogenetic relationships described by the two trees is correct? a. Joe’s tree shows B, C, D, and E having A as a common ancestor but Jane’s tree shows only B having A as an ancestor. b. The degree of relationship between D and E in Joe’s tree is greater than the degree of relationship between A and B in Jane’s tree. c. In Joe’s tree, the closest common ancestor of B and E was more recent than is indicated in Jane’s tree. d. You would expect to find more similarities in the biology of B and C if Jane’s tree is correct than if Joe’s tree is correct e. Both (b) and (c) are correct. 2.
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First midterm examples - Example questions for first...

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