Genetics

What percentage of the F2 offspring predicted in a cross for mice coat color
In mice, the allele for black fur is dominant to the allele for brown fur. If a male homozygous black mouse is crossed with a female brown mouse, what percentage of the F2 offspring do you predict will be homozygous?

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  1. Since both parents have to be homozygous, all of F1 will be heterozygous (Bb).

    Do a Punnett square for F2.

    https://www.google.com/search?q=Punnett+square

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  2. 50

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  3. 25

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