A black guinea pig crossed with an albino guinea pig produced 12 black offspring.When the albino was crossed with a second black animal,6 blacks and 6 albinos were obtained.What is the best explanation for this genetic situation?

Question

Quizplus · Accepted Answer

The fact that the black guinea pig crossed with an albino guinea pig produced 12 black offspring suggests that black is the dominant trait and albino is recessive. This is further supported by the fact that when the albino is crossed with a second black animal, a 1:1 ratio of black to albino offspring is obtained, which is consistent with Mendelian inheritance patterns for a single gene with two alleles.

A Black Guinea Pig Crossed with an Albino Guinea Pig