1. HWE, Speciation, and Population Genetics 11-19-15 SI Session

2. A gene pool is: A. A group of individuals in the same place at the same time B. All alleles at all gene loci in all individuals of a population C. The amount of genes in a population D. The amount of varying genotypes of a given population

3. A gene pool is: A. A group of individuals in the same place at the same time B. All alleles at all gene loci in all individuals of a population C. The amount of genes in a population D. The amount of varying genotypes of a given population

4. Meiosis and sexual reproduction change allele frequencies within populations. A. True B. False

5. Meiosis and sexual reproduction change allele frequencies within populations. A. True B. False

6. Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration) B. No mutations C. Non-random mating D. A & B E. All of the above

7. Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration) B. No mutations C. Non-random mating D. A & B E. All of the above

8. Which of the following are part of the five conditions that must be met in order for a population to experience HWE? A. No gene flow (migration) B. No mutations C. Non-random mating D. A & B E. All of the above 1)No gene flow (migration) 2)No natural selection 3)No mutations 4)No genetic drift 5)Matings MUST be random

9. In most situations, do humans randomly mate? A. Yes B. No

10. In most situations, do humans randomly mate? A. Yes B. No

11. Human immune system attraction  http://www.nature.com/hdy/journal/v81/n2/abs/6884281a.html http://www.nature.com/hdy/journal/v81/n2/abs/6884281a.html  Men and women subconsciously prefer to mate with individuals whose immune systems are drastically different than their own  Detected in hormones/ smell  WHY?  To create offspring that has an immune system more diverse that either of the parents individually  higher likelihood of survival

12. The change in allele frequencies over a short time span (a couple generations) is referred to as which of the following? A. Natural selection B. Random mating C. Sexual selection D. Microevolution

13. The change in allele frequencies over a short time span (a couple generations) is referred to as which of the following? A. Natural selection B. Random mating C. Sexual selection D. Microevolution Microevolution leads to… Macroevolution: the production of new species/ groups of species ****evolution never happens in an individual, always on a population of a group within a species

14. Of the causes of evolution, which of the following is likely to better adapt a population to its environment? (Hint: which of the following processes describes the transfer of alleles from one generation to the next?) A. Natural selection B. Mutations C. Gene flow D. Migration

15. A. Natural selection B. Mutations C. Gene flow D. Migration Of the causes of evolution, which of the following is likely to better adapt a population to its environment? (Hint: which of the following processes describes the transfer of alleles from one generation to the next?)

16. Which of the following shows disruptive selection? A. B.B. C.C.

17. Which of the following shows disruptive selection? A. B. C.C.

18. Which of the following shows stabilizing selection? A. B.B. C.C.

19. Which of the following shows stabilizing selection? A. B.B. C.C.

20. Which of the following shows directional selection? A. B.B. C.C.

21. Which of the following shows directional selection? A. B.B. C.C.