Question

Unattached earlobes are a dominant trait in humans. finn and maggie both have unattached earlobes but their daughter, celia, does not. if finn and maggie have a second child, what is the probability that this child will have attached earlobes? 1/4 3/4 1/2 1 1/8

Answer 1

The answer is 1/4.

The genes when combined must be Heterozygous, meaning they have one dominant and one recessive, Celia must have gotten the 1/4 recessive, and it won't change the way genetics are just because you've already had offspring, the percentage stays the same.