M
the bottom unanswered question, which related to the one before.

14 points, and brainliest answer

The results of the mice are different from the expected ratio because alleles assort independently in gametes at the time of gamete formation. Although, we can check the probability of the alleles the offsprings from a cross will carry, but we cannot exactly tell that which gamete will acquire which allele. Hence, the ration through a punnet square is just an assumption. The actual values might defer as alleles assort independently.