Question

1. a ffee mouse is bred to another ffee mouse. what is the probability that an offspring mouse will be born with the genotype ff ee? 0 1/16 3/16 1/4

Explanation:

Step1: Analyze allele probabilities for F - gene

The parent mice have genotype Ff. The probability of getting an F allele from one parent is $\frac{1}{2}$, and the probability of getting an F from both parents to have FF is $\frac{1}{2}\times\frac{1}{2}=\frac{1}{4}$.

Step2: Analyze allele probabilities for E - gene

The parent mice have genotype Ee. The probability of getting an E allele from one parent is $\frac{1}{2}$, and the probability of getting an E from both parents to have EE is $\frac{1}{2}\times\frac{1}{2}=\frac{1}{4}$.

Step3: Calculate combined probability

Using the product rule for independent events, the probability of getting FF and EE together is $\frac{1}{4}\times\frac{1}{4}=\frac{1}{16}$. But the parents are FfEe, and there is no way to get the FFEE genotype as the parents do not have the necessary homozygous - dominant alleles for both genes simultaneously in sufficient quantity. So the probability is 0.

Answer:

0