Genetics as it applies to evolution, molecular biology, and medical aspects.

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Post by mikeportnoy » Tue Oct 07, 2008 10:07 am

Hair colour is determined by the dominant allele B for black hair and the recessive allele b for brown hair . What are the genotypes for the father and mother that will give a phenotypic ratio of 1:1 amogn the children . Explain

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Re: Genes

Post by blcr11 » Tue Oct 07, 2008 12:54 pm

There's only six (I think) possible Punnet squares you can make here. Write them out and it should be obvious which one gives the outcome you're looking for.

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Post by alextemplet » Tue Oct 07, 2008 2:34 pm

What? No blondes? That's racist!
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