Consider a gene with four alleles A₁, A₂, A₃, and A₄. If the cross A₁A₂ × A₃A₃ yields two offspring, what is the probability that both of them have the same genotype? A)1/8 B)1/4 C)1/3 D)1/2 E)3/4

Question

Quizplus · Accepted Answer

The cross between A₁A₂ and A₃A₃ can produce offspring with genotypes A₁A₃ or A₂A₃. Each genotype has a 1/2 chance of occurring, so the probability that both offspring have the same genotype is 1/2.

Consider a Gene with Four Alleles A1, A2, A3, and A4

Consider a Gene with Four Alleles A₁, A₂, A₃, and A₄