What genotypes and phenotypes can be produced by the followi

What genotypes and phenotypes can be produced by the following crosses an=d what is the probability that each will occur? (note: the traits are the ABO and MN blood groups, and PTC tasting).

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a) BBTt   x   BOtt               b) MNTt   x   MNTt

Solution

Answer:

a) BBTt   x   BOtt

I^BI^BTt X   I^BI^Ott

BBTt :  BBtt : BOTt : BOtt = 1/4 : 1/4 : 1/4 : 1/4

b) MNTt   x   MNTt

MMT_ = 3/16

MMtt= 1/16

NNT_ = 3/16

NNtt = 1/16

MNT_= 6/16

MNtt = 2/16