Imagine that you are a genetic counselor, and a couple planning t...

Question

Imagine that you are a genetic counselor, and a couple planning to start a family comes to you for information. Charles was married once before, and he and his first wife had a child with cystic fibrosis. The brother of his current wife, Elaine, died of cystic fibrosis. What is the probability that Charles and Elaine will have a baby with cystic fibrosis? (Neither Charles, Elaine, nor their parents have cystic fibrosis.)

Accepted Answer

Hello everyone here we have a question that says Jack was married to Diana. Both are carriers of an a little assisted fibrosis. What is the probability that Jack and Diana will have a baby with cystic fibrosis? So they are both characters which carriers? Which means they are hetero Guidice hetero zegas. So we're going to say capital C. Little C. So that is Jack and that is diane. And we're going to make our punnett square. So first we have capital C. Capital C. So that's home as I guess normal. Then we have capital C. Little C. That's hetero sickos normal. Then we have capital C. Lower K. C. That's hetero Z. Is normal. And then we have to lower case sees that is homogeneous. And the baby will have cystic fibrosis. So our answer here is a 1/4 of the baby's well there's a 1/4 chance that Jack and Diana will have a baby with cystic fibrosis. Thank you for watching. Bye.

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