Question

A couple, Jane and Biron, tell you that Jane's sister Maureen has Hurler syndrome. They are concerned that they might have a child with the same disorder. Using the information you calculated in the previous question , what is the probability that couple's first child will have Hurler syndrome?

Answer 1

The probability of a couple having a child with Hurler syndrome depends on whether both parents are carriers of the disorder. If both parents are carriers, there is a 25% chance that the child will have Hurler syndrome. If only one parent is a carrier, the child will not have Hurler syndrome, but there is a 50% chance that they will be a carrier like their parent.

Step-by-step explanation:

The probability of a couple having a child with Hurler syndrome depends on whether both parents are carriers of the disorder.

If both parents are carriers, there is a 25% chance that the child will have Hurler syndrome. This is because each parent has a 50% chance of passing on the recessive gene, and the child must inherit the gene from both parents to have the disorder.

On the other hand, if only one parent is a carrier, the child will not have Hurler syndrome, but there is a 50% chance that they will be a carrier like their parent.