In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents’eye colour (Eye colour is not a sex linked trait)
A Both parents have blue eyes
B Their father has blue eyes and their mother has brown eyes
C both parents have brown eyes
D Their mother has the blue eyes and their father has the brown eyes
Answer is C
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