If parents with the following genotypes (AABb * aaBb) have offspring, what is the probability that they will have an offspring with the genotype (AaBB)?

Question

Quizplus · Accepted Answer

The parent with genotype AABb can produce gametes with AB and Ab. The parent with genotype aaBb can produce gametes with aB and ab. The only way to get an offspring with genotype AaBB is by combining the Ab gamete from the first parent with the aB gamete from the second parent. Since each parent has a 1/2 chance of providing the needed gamete, the overall probability is 1/2 * 1/2 = 1/4.

If Parents with the Following Genotypes (AABb * AaBb) Have