Introduction to Genetic Analysis 151

Introduction to Genetic Analysis 151 - 44200_04_p115-150...

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a. 111 b. w s e c. 1 se d. w 11 e. 11 e f. ws 1 g. w 1 e h. 1 s 1 43. Every Friday night, genetics student Jean Allele, ex- hausted by her studies, goes to the student union’s bowling lane to relax. But even there, she is haunted by her genetic studies. The rather modest bowling lane has only four bowling balls: two red and two blue. They are bowled at the pins and are then collected and returned down the chute in random order, coming to rest at the end stop. Over the evening, Jean notices familiar patterns of the four balls as they come to rest at the stop. Compulsively, she counts the differ- ent patterns. What patterns did she see, what were their frequencies, and what is the relevance of this matter to genetics? 44. In a tetrad analysis, the linkage arrangement of the p and q loci is as follows: Assume that, in region i, there is no crossover in 88 percent of meioses and a single crossover in 12 percent of meioses; in region ii, there is no crossover in 80 percent of
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