Question

A h0m0zygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). What percent will be h0m0zygous?
0%

50%

75%

25%

25%

Answer 1

Answer:

75%

Explanation:

Answer 2

Answer:

50%

Explanation:

I wasn't given which way to do this, so ill presume h0m0zygous dominant is female for convenience

$\left[\begin{array}{ccc}&B&B\\B&BB&BB\\t&Bt&Bt\end{array}\right]$

of the offspring, any one of them will have a 50% chance to be h0m0zygous dominant, two of the same genotype; and a 50% chance to be heterozygous