Unit 3 Test Review

Name:______pd___Date______Chapter 16/17/19 Test Review Evolution Question Answer 1. 10% of a population is blue-eyed (a recessive trait). Use the H-W law to determine what percent of the population is heterozygous for not having blue eyes). 2. What does natural selection directly work on? 3. If 90% of a population has a widow’s peak (dominant trait), what percent of the population will show the recessive trait? Be heterozygous for the trait? 4. What is a polygenic trait 5. What 5 scientists influenced Darwin’s theory of evolution? HOW did they influence him?

6. What are 5 pieces of evidence for evolution?

7. What are the three modes of selection? Recognize and give examples 8. What are two general examples of genetic drift? Explain each. 9. What are three sources of genetic variation? 10. What five conditions must be met for the Hardy- Weinberg Law? 11. What good ideas did Lamarck have about evolution? 12. What incorrect ideas did Lamarck have about evolution? 13. What is meant by common descent? 14. What is the definition of natural selection? 15. What is the most probable reason for genetic drift to occur? 16. What is the term that describes the formation of a new species? 17. What must be present (3 things) in a population in order for natural selection to occur? 18. What is temporal isolation? 19. The genes carried by all members of a particular population make up the populations? 20. What ship did Darwin sail on? 21. What term describes characteristics or behaviors that enable an organism to survive better and reproduce more in its environment? 22. What theory of speciation says that evolutionary change has long stable periods interrupted by brief periods of change? 23. What theory of speciation says that evolutionary change is slow and steady? 24. What three factors can lead to reproductive isolation? 25. What was Hutton’s and Lyell’s contribution to Darwin’s theory? 26. What was the most famous place Darwin visited? 27. When one species gives rise to several species – which type of speciation is this? (like in Darwin’s finches) 28. Which mode of selection did the peppered moths in England exhibit? 29. Which mode of selection has individuals with the average form of the trait having the highest fitness? 30. In genetic drift, the allele frequencies in a gene pool change because of? 31. Genetic drift tends to occur in populations that are? 32. What is the founder effect?

33. What is genetic equilibrium?

34. What are the 5 conditions that must be met to maintain HW Equilibrium? 35. What factor is necessary for speciation?

36. What are the 5 steps that are believed to create the variety seen in the 14 different species of Darwin’s inches? 37. What is adaptative radiation?

38. What is the process by which 2 species evolve in response to changes in each other? 39. Differentiate between divergent and convergent evolution. 40. If a population is not in Hardy Weinberg equilibrium, what is happening? 41. A whale and a dolphin are organisms that come from a different evolutionary branch, yet live in a similar environment, yet look similar – this is an example of? 42. What is artificial selection?