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30 September, 20:02

What must be the genotype of two brown-eyed parents if they give birth

to a blue-eyed child when brown eyes is dominant over blue eyes?"

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Answers (2)
  1. 30 September, 21:39
    0
    Bb

    Explanation:

    The parents must be heterozygous in order to have a child with blue eyes
  2. 30 September, 23:29
    0
    Brown eyes + blue eyes = 50% chance of blue eyes, but only if the brown-eyed parent carries a blue-eyed gene. If not, the chance is 0% Brown eyes + brown eyes = 25%, but only if both parents carry the blue-eyed gene.
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