Spring 2007 Midterm

Spring 2007 Midterm - 1 Spring 2007 Bild 3 Midterm 1....

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1 Spring 2007 Bild 3 Midterm 1. Briefly define (18 points): a. Ribosome b. Ribozyme c. Mutation d. Horizontal gene transfer e. Founder effect f. Runaway sexual selection
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2 2. You journey on a scientific expedition to the jungle-covered mountains at the center of the island of Borneo, and there you discover two new kinds of Drosophila fruit flies. You name them after the sponsors of your trip, D. rockerfellerii and D. billgatesii . The two types of fly are morphologically distinct, and they can easily be raised in the laboratory. a. Back in your laboratory in America, you put individual virgin females of D. rockerfellerii in bottles along with one D. rockerfellerii and one D. billgatesii male, and watch to see what happens. You repeat this experiment 20 times with different sets of flies each time, and the results are shown below: D. rockerfellerii female mates with: Number of matings: D. rockerfellerii male 17 D. billgatesii male 3 What kind of isolating mechanism are you attempting to measure here? In approximate
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This note was uploaded on 10/19/2009 for the course BICD BILD 3 taught by Professor Wills during the Fall '08 term at UCSD.

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Spring 2007 Midterm - 1 Spring 2007 Bild 3 Midterm 1....

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