If the parents of a child have the following genotypes [Bb * Bb], what is the probability that they will have a child with the genotype [BB]?

Question

Quizplus · Accepted Answer

The probability of having a child with the genotype [BB] is 25% because each parent can contribute either a B or a b allele. The combination needed for a [BB] genotype is for both parents to contribute the B allele, which has a probability of 1/2 from each parent, making the overall probability 1/2 * 1/2 = 1/4 or 25%.

If the Parents of a Child Have the Following Genotypes