Bio1130 Multiple Choice Final

Bio1130 Multiple Choice Final - 1. Four of the five...

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1. Four of the five processes listed below will disrupt Hardy-Weinberg equilibrium. Select the EXCEPTION. a. nonrandom mating b. genetic drift c. natural selection d. punctuated equilibrium e. migration 2. A group of interbreeding individuals in a specific geographical location is called a a. species. b. population. c. gene pool. d. community. e. ecosystem. 3. For a biologist studying a small fish population in the lab, which Hardy-Weinberg condition is easiest to meet? a. No mutation b. No selection c. No gene flow d. No genetic drift e. Random mating 4. Natural selection that shifts the adaptation of an entire populations is a. artificial selection. b. directional selection. c. sexual selection.
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d. stabilizing selection. e. disruptive selection 5. Gene flow is a concept best used to describe an exchange between a. populations. b. species. c. males and females. d. chromosomes. e. individuals. 6. Sexual dimorphism is most often a result of a. intrasexual selection. b. stabilizing selection. c. artificial selection. d. pansexual selection. e. intersexual selection 7. The Darwinian fitness of an individual is measured most directly by a. how long it lives. b. the number of its offspring that survive to reproduce. c. the number of mates it attracts. d. its physical strength. e. the number of "good genes" it possesses. 8. Male turkeys have a snood, which is a flap of skin that hangs across their beak. Snood length is negatively correlated with parasite load (e.g., males with longer snoods have fewer parasites), and females prefer to mate with long-snooded males. This is an example of ________.
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b. the fundamental asymmetry of sex. c. sexual selection via female choice. d. a genetic marker 9. You are studying three populations of birds. Population A has ten birds, of which one is brown (a recessive trait) and nine are red. Population B has 100 birds, of which ten are brown. Population C has 30 birds, and three of them are brown. In which population is the frequency of the allele for brown feathers highest? a. Population C. b. They are all the same. c. Population B. d. Population A. e. It is impossible to tell from the information given. 10. In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of allele a is 0.1. What is the percentage of the population that is heterozygous for this allele? a. 90 b. 49 c. 10 d. 81 e. 18 11. An earthquake decimates a ground-squirrel population. The surviving population happens to have broader stripes on average than the initial population. If broadness of stripes is genetically determined, what effect has the ground-squirrel population experienced during the earthquake? a. A genetic bottleneck
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This note was uploaded on 01/08/2012 for the course SCIENCE BIO1130 taught by Professor Fenwick during the Fall '11 term at University of Ottawa.

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Bio1130 Multiple Choice Final - 1. Four of the five...

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