Problem
A mating between a black guinea pig and an albino guinea pig produces 12 black offspring.
When this same albino guinea pig mates with a different black guinea pig, they produce 6 black and 6 albino offspring.
What is the best explanation for this genetic outcome? Write the genotypes for the parents (P generation), the gametes produced by each parent, and the offspring (i.e., F1 generation) for both crosses. You must show how you arrived at your answer.