BIO 304-BIO 304 Population Biology & Evolution

BIO 304-BIO 304 Population Biology & Evolution Which of the following is the expression for broad-sense heritability? a. VE/VP b. VE/VG c. VA/VP d. VG/VP 12. Bdelloid rotifers . a. have both sexual and asexual reproduction b. are hermaphroditic, individuals are both male and female. c. can switch from male to female d. are asexual 13. In a population of 1000 people, 490 had the AA genotype, 420 were Aa, and 90 were aa. What is the frequency of the A allele? a. .70 b. .60 c. .50 d. .30 e. .20 14. Offspring of siblings have an inbreeding coefficient of . a. 1/32 b. 1/16 c. 1/8 d. 1/4 e. 1/2 15. Populations of collared lizards in the Ozark Mountains are isolated from each other by encroachment of oak-hickory and red cedar forests into their habitat. a. True b. False 16. Genetic drift is not a mechanism of evolution. a. True b. False 17. When Bradshaw and colleagues investigated the QTLs of two species of Mimulus (Mimulus cardinalis and Mimulus lewisii), they used marker loci as a way to map the QTLs. Their results are shown in the accompanying figure. According to these results, . a. the differences in genotype for the majority of these QTLs explained small amounts of the variations in flower phenotypes for both species b. some of the QTLs did have pronounced effects on the flowers' phenotypes c. at least one QTL explained 90% of the phenotypic variance for each species. d. All of the above. 4 18. What was the likely cause of the rapid decline in Illinois populations of the prairie chicken in the 1970’s. a. Loss of food resources b. Expression of deleterious recessive alleles c. Hunting d. Introduction of a new predator e. Competition for lek space with other male 19. In the mating of an Aa female and an Aa male, the genotypic outcome predicted by a Punnett square is . a. three-quarters Aa and one-quarter AA b. one-half AA and one-half aa c. three-quarters Aa and one-quarter aa d. one-quarter AA, one-quarter aa, and one-half Aa e. All offspring will have the genotype Aa 20. Which of the following is an unlikely cause for the maintenance of color polymorphisms in animal species? a. Sexual selection b. Frequency-dependent sel