Interpreting Cladograms

Part 1: Interpret Cladograms

Study the cladogram below and answer the questions that follow

1. What trait separates tuna from lampreys on this cladogram?

2. What trait separates turtles from salamanders on this cladogram? 

3. According the hypothesis represented by this cladogram, which organism is most closely related to the leopard? 

4. What four traits are shared by the closely related organisms specified in question 3? List the traits in the order they appeared in evolutionary history. 

5. According the hypothesis represented by this cladogram, which organism will have DNA most similar to the turtle? 

6. According the hypothesis represented by this cladogram, which organism's DNA would be expected to differ the most from the leopard? 

7. What trait separates amphibians from Ray-finned fish on this cladogram? 

8. What trait separates crocodiles and birds from rabbits and primates on this cladogram? 

9. According the hypothesis represented by this cladogram, which group of organisms is most closely related to birds? 

10. What five traits are shared by the two closely related groups of organisms specified in question 9? List the traits in the order they appeared in evolutionary history.

11. According the hypothesis represented by this cladogram, which group of organisms is most closely related to primates? 

12. According the hypothesis represented by this cladogram, which group's DNA would be expected to differ the most from the DNA of a crocodile?