BIO 304

BIO 304 Population Biology & Evolution-Exam 2 here are 65 questions on 11 pages of this exam. 1. What was surprising about the results of Buri’s classic experiment on genetic drift in fruit flies (shown at right)? a. The flies showed no change in heterozygosity. b. Heterozygosity was maintained by mutation-selection balance. c. Strains maintained in benign conditions accumulated deleterious alleles. d. Heterozygosity declined more rapidly than predicted by Sewall Wright’s equa...

BIO 304-Population Biology and Evolution – Exam 3 . What evolutionary force is responsible for adaptations? a. Mutation b. Drift c. Selection d. Migration e. All of the above f. None of the above 2. Why do males often compete for access to females more than females compete for access to males? a. Males invest less in reproduction. b. In most species, access to mates limits male reproduction more often than access to mates limits female reproduction. c. Both are true. d. Neither ...

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 ...

BIO 304-Population Biology & Evolution-Questions and Answers There are 65 questions on 11 pages of this exam. 1. The null hypothesis, which demonstrates that evolution is not occurring from generation to generation, is known as the _____________. a. Bateman model b. Hardy-Weinberg equilibrium c. Fisher stability d. Mendelian stability 2. Sickle-cell anemia is caused by a mutation that substitutes the nucleotide thymine for adenine within a codon. This is an example of ________________...