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4. In humans, eye colour is determined by a gene that produces a pigment found in the iris. The allele for brown pigment (B) is dominant to the one for

blue pigment(b), A blue-eyed man and a brown-eyed woman decide to have a child. 1. What is the father's genotype? 2. What could the mother's genotype be? 3. Let's imagine that they had a blue-eyed baby. Does this help you figure outwhat the mother's genotype is? Use Punnett squares to illustrate yourexample.

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