A couple has a child with a genetic disorder caused by a recessive allele. If both parents are carriers, what is the probability that their next child will have the disorder?
Q1. A couple has a child with a genetic disorder caused by a recessive allele. If both parents are carriers, what is the probability that their next child will have the disorder?
Answer: 1/4
Explanation: Each child has a 25% chance of inheriting two recessive alleles.