Preview Science Concepts Math Skills Using Science Graphics

1. Preview • Science Concepts • Math Skills • Using Science Graphics

2. 1. Population genetics is the study of A. how individuals evolve. B. how populations interact. C. how genes determine traits. D. how alleles change within populations.

3. 1. Population genetics is the study of A. how individuals evolve. B. how populations interact. C. how genes determine traits. D. how alleles change within populations.

4. 2. Phenotypic variations take the form of F. genetic differences between organisms. G. character differences between organisms. H. molecular differences between organisms. J. chromosomal differences between organisms.

5. 2. Phenotypic variations take the form of F. genetic differences between organisms. G. character differences between organisms. H. molecular differences between organisms. J. chromosomal differences between organisms.

6. 3. The major source of new alleles in a natural population is A. mutation. B. polyploidy. C. genetic drift. D. natural selection.

7. 3. The major source of new alleles in a natural population is A. mutation. B. polyploidy. C. genetic drift. D. natural selection.

8. 4. Which of the following is an example of nonrandom mating? F. Genes are removed from the population when individuals migrate. G. A change in a population’s allele frequency is due to chance. H. An individual chooses a mate that has the brightest coloration. J. An individual is eliminated from the gene pool by natural selection.

9. 4. Which of the following is an example of nonrandom mating? F. Genes are removed from the population when individuals migrate. G. A change in a population’s allele frequency is due to chance. H. An individual chooses a mate that has the brightest coloration. J. An individual is eliminated from the gene pool by natural selection.

10. 5. Random change in allele frequency due to chance alone is called A. gene flow. B. genetic drift. C. natural selection. D. sexual selection.

11. 5. Random change in allele frequency due to chance alone is called A. gene flow. B. genetic drift. C. natural selection. D. sexual selection.

12. 6. The Hardy Weinberg equation, p2 + 2pq + q2 = 1, describes a state of equilibrium among all alleles in a population. Expressed in terms of percentages, the sum of allele frequencies in a population would be F. 1% G. 2% H. 50% J. 100%

13. 6. The Hardy-Weinberg equation, p2 + 2pq + q2 = 1, describes a state of equilibrium among all alleles in a population. Expressed in terms of percentages, the sum of allele frequencies in population would be F. 1% G. 2% H. 50% J. 100%

14. Use the diagram, Flower Color in a Population of Snapdragons, to answer the following questions.7. In this population, which genotype has the lowest frequency? A. RR B. rr C. red D. white

15. Use the diagram, Flower Color in a Population of Snapdragons, to answer the following questions.7. In this population, which genotype has the lowest frequency? A. RR B. rr C. red D. white

16. Use the diagram, Flower Color in a Population of Snapdragons, to answer the following questions.8. In this population, what is the frequency of heterozygotes? F. 13% G. 25% H. 38% J. 62%

17. Use the diagram, Flower Color in a Population of Snapdragons, to answer the following questions.8. In this population, what is the frequency of heterozygotes? F. 13% G. 25% H. 38% J. 62%

18. Use the diagram, Distribution of Body Colors in Bark Beetles, to answer the following questions.9. The diagram represents which form of selection? A. sexual selection B. stabilizing selection C. disruptive selection D. directional selection

19. Use the diagram, Distribution of Body Colors in Bark Beetles, to answer the following questions.9. The diagram represents which form of selection? A. sexual selection B. stabilizing selection C. disruptive selection D. directional selection