AP Biology Name __________________________
Guided Reading Chapter 25

1. Use the following blank diagram to compare and explain monophyletic, paraphyletic and polyphyletic – include the definition of each term in your diagram

2. What is the difference in the meaning between the lengths of lines in a phylogram and ultrametric tree?

3. Look up the term parsimony in the dictionary and write its definition here.

4. How is this applied to understanding evolution – what is the principle of maximum parsimony and the principle of maximum likelihood?

5. What is the difference between orthologous genes and paralogous genes?

6. What is the concept of a molecular clock and how is it useful?

7. What domains have been agreed upon and give a brief description of each.