Final answer:
The probability of the parents in question #2 having a child with this particular genotype depends on their individual genotypes. If both parents are heterozygous for a trait, the probability would be 25 percent.
Step-by-step explanation:
Based on the information provided, it is not possible to determine the specific genotype of the parents in question #2. However, if the parents are both heterozygous for a particular trait, such as having one dominant allele (B) and one recessive allele (b), the probability of having a child with the genotype BB would be 25 percent, the probability of having a child with the genotype bb would also be 25 percent, and the probability of having a child with the genotype Bb would be 50 percent.