A & P

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Assume that the allele controlling brown eyes (B) is dominant over that controlling blue eyes (b) in human beings. (In actuality, eye color in humans is an example of multigene inheritance, which is much more complex than this.) A blue-eyed man marries a brown-eyed woman; and they have six children, all brown-eyed. What is the most likely genotype of the father?
mother?
If the seventh child had blue eyes, what could you conclude about the parents’ genotypes?

  • A & P -

    Father: bb
    Mother: BB
    all children are Bb.
    If the seventh child is bb, then Mother is Bb.

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