in human beings, blue eyecolor is recessive to brown eyecolor. If a brown eyed man has a blue eyed mother, then find- a) what are the possible genotypes of his father? b) What is the genotype of the man and his mother.

Asked by  | 29th Dec, 2012, 05:14: PM

Expert Answer:

Geneticists represent brown eyes with a B and blue eyes with a b. A brown-eyed person may be either BB or Bb. 

So the father’s genotypes may be either BB or Bb.

The mother is bb, since she has blue eyes, which is a recessive trait.

Hence the Son is Bb.

Answered by  | 1st Jan, 2013, 03:07: PM

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