In a cross of two individuals,both of whom have genotype AaBb,what proportion of the offspringare expected to havethe genotypeAABB?

Question

Quizplus · Accepted Answer

The genotype AaBb can produce gametes AB, Ab, aB, and ab. To get an offspring with the genotype AABB, one parent must contribute the AB gamete and the other parent must also contribute the AB gamete. The probability of one parent producing an AB gamete is 1/4 (since there are four possible gametes, each equally likely), and the same is true for the other parent. Therefore, the probability of both contributing the AB gamete is (1/4) * (1/4) = 1/16.

In a Cross of Two Individuals,both of Whom Have Genotype