In humans,brown eyes (B)are dominant over blue eyes (b).A brown-eyed woman who has a blue-eyed child would have the genotype

Name: In humans,brown eyes (B)are dominant over blue eyes (b).A brown-eyed woman who has a blue-eyed child would have the genotype
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The brown-eyed woman could be homozygous dominant (BB)or heterozygous (Bb).But as her blue-eyed child must be homozygous recessive (bb),the mother must have been heterozygous to pass down the recessive allele.

In Humans,brown Eyes (B)are Dominant Over Blue Eyes (B)