Exam4_practice - M u ltip le C h o ic e P R A C T I C E fo...

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1 Multiple Choice PRACTICE for Exam 4 2010 (taken from last year’s exam). Note: this is provided on an “as-is” basis. Use only as practice and not as a guide to what will or will not be on this year’s exam. Last year’s course and this year’s course are not the exactly the same, so some material on 2009 Exam 4 may have been on 2010 Exam 3, or vice versa. If some of the questions seem completely unfamiliar, it is probably because I have not covered the material this year yet (or will not at all). As-is basis!!! MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. (3 points each) 1. Gene flow is a concept best used to describe an exchange between a. species b. males and females c. populations d. individuals e. chromosomes 2. In population 1, blue butterflies produce 10 viable offspring on average, and red butterflies produce 5 viable offspring on average. In population 2, blue butterflies produce 80 offspring, and red butterflies produce 40 offspring. Assume no gene flow between the populations. All of the following are true except: a. in population 1 and in population 2, blue butterflies are more fit than red butterflies b. the relative fitness of red butterflies in population 2 is greater than relative fitness of red butterflies in population 1 c. the relative fitness of red butterflies in population 2 is half that of the blue butterflies in population 2 d. the two populations are experiencing prezygotic isolation e. none of the above are true 3. The experiment performed by Max Delbruck at Vanderbilt tested the idea that a. mutations are rare b. mutations are deleterious c. mutations are never advantageous
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Exam4_practice - M u ltip le C h o ic e P R A C T I C E fo...

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