In fowl,the genotype rrpp gives single comb, R_P_ walnut comb, rrP_ pea comb, and R_pp rose comb.

a. What comb type will appear and in what proportions in F and F2 if single- combed birds are crossed with birds of a true-breeding walnut-combed strain?

b. What are the genotypes of the parents in a walnut x rose mating from which the progeny are 3 rose: 3walnut: 1 pea: 1single?

Posted Date: 2/16/2013 6:06:04 AM | Location : United States

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