Problem set 3ans

Problem set 3ans - Practice Problem Worksheet 3 1. Consider...

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Practice Problem Worksheet 3 1. Consider the problem of comb shape inheritance in chickens, where walnut, rose pea, and single are observed as distinct phenotypes. How is comb shape inherited and what are the genotypes of the P1 generation of each cross? Use the following data to answer these questions. Cross 1. Single X single = all single Cross 2 walnut X walnut = all walnut Cross 3 rose X pea = all walnut Cross 4 F1 X f1 of cross 3 Walnut x walnut = 93 walnut 28 rose 32 pea 10 single Two genes involved. W – walnut w – nonwalnut S – nonsingle s – single Cross 1: wwss X wwss = all ss (single) Cross 2: W_S_ X W_S_ Cross 3: wwSS X WWss = all walnut Cross 4: WwSs X WwSs W_S_ (Walnut) 93 wwS_ (rose) 28 W_ss (pea) 32 Wwss (single) 10
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Practice Problem Worksheet 3 2. In radishes, flower color may be red, purple, or white. The edible portion of the radish may be long or oval. When only flower color is studied, red X white yields all purple. If these F1 purples are interbred, no codominance is evident, and the F2 generation consists
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This note was uploaded on 04/29/2008 for the course BIO 392 taught by Professor Tomkiel during the Fall '06 term at UNC Greensboro.

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Problem set 3ans - Practice Problem Worksheet 3 1. Consider...

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