Introduction to Genetic Analysis 679

Introduction to Genetic Analysis 679 - the correlation...

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Unformatted text preview: the correlation between x and y. Then calculate the correlation coefficient for each set of data pairs, and compare this value with your estimate. a. (1, 1); (2, 2); (3, 3); (4, 4); (5, 5); (6, 6). b. (1, 2); (2, 1); (3, 4); (4, 3); (5, 6); (6, 5). c. (1, 3); (2, 1); (3, 2); (4, 6); (5, 4); (6, 5). d. (1, 5); (2, 3); (3, 1); (4, 6); (5, 4); (6, 2). 11. Describe an experimental protocol for studies of rel- atives that could estimate the broad heritability of alcoholism. Remember that you must make an ade- quate observational definition of the trait itself. 12. A line selected for high bristle number in Drosophila has a mean of 25 sternopleural bristles, whereas a low-selected line has a mean of only 2. Marker stocks involving the two large autosomes II and III are used to create stocks with various mixtures of chromosomes from the high (h) and low (l) lines. The mean number of bristles for each chromosomal combination is as follows: What conclusions can you reach about the distribu- tion of genetic factors and their actions from these...
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