11. Having freckles is a dominant trait (F). If Tim is heterozygous for freckles

Question

11. Having freckles is a dominant trait (F). If Tim is heterozygous for freckles, and Beth does not have freckles; what is the probability of their child having freckles? (1) 12.In snapdragon flowers, red color exhibits incomplete dominance over white; when both exist together, the flowers are pink. a. In a cross between a red flower snapdragon and white flower snapdragon, what is the genotype(s) of the offspring (F2 generation) (1)? b. If two flowers from the Fa generation are crossed, what are the phenotypic and genotypic ratios of the next generation? (1) 13.In a particular family, one parent has Type A blood, and the other has Type B blo od They have four children. One has Type A blood, one has Type B, one has Type AB, and one has Type O. What are the genotypes of all six people? (.5 each) Type A Type B Type AB Type O-

Explanation / Answer

11.     Tim Ff X ff Beth

          Ff Freckles : ff No frekless

   P = 1/2

12.       Red RR   X   rr White

           F1       Rr Pink

           F2       Rr X Rr

       Genotype     RR Red: Rr Pink : Rr Pink : rr White

   Two flowers fro F2 generation
    
                    Rr X rr

    F3             Rr Pink : rr white

13.    Parent IA Io X IB IO

      Type A = IA IA
      type B = IB IB
     type AB = IA IB
     type O = IO IO
                            

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