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Mehaelgo
Answered

An example of codominance is seen in the roan coat in horses. A roan coat consists of both black and white hairs. Thus the coat appears blue colored rather than black or white purebred black (BB) blue roan (BW) purebred white (WW) PROBLEMS а
1. What happens when you cross a black horse and a blue roan horse? genotype ratio: phenotype ratio
2. What happens when you cross two blue roan horses? genotype ratio: phenotype ratio:​

Sagot :

Sydlag10196go

Answer:

1. If you will cross a pure black horse with a roan horse, it will produce 2 pure black horses and 2 roan coat horses.

  Genotype :               Phenotype

          2 BB                 (black)

          2 BW                 (roan)

Genotypic Ratio           Phenotypic Ratio

       2:2                                  2:2

2. If you cross 2 blue roan horse, the cross will produce 1 pure black horse, 2blue roan horses and 1 purewhite horse.

 Genotype :               Phenotype          

          1 BB                 (black)

          2 BW                (roan)

          1  WW               (white)

Genotypic Ratio           Phenotypic Ratio

       1:2:1                                  1:2:1

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