In the P1 generation, a claret eye, cut wing female Drosophila was crossed with
ID: 74792 • Letter: I
Question
In the P1 generation, a claret eye, cut wing female Drosophila was crossed with a wild type male. The resulting F1 flies were 1/2 phenotypically wild type females and 1/2 normal eye cut wing males. When the F1 female flies were crossed to a homozygous recessive male, the following offspring were observed: The gene coding for clarest eye color is: The gene coding for cut wing is: Two individuals who are carriers for cystic fibrosis are planning a family. If they have two children, what is the probability only one offspring will have the disease and the other will be phenotypically normal?Explanation / Answer
11. a) x-linked
12 a) x linked
13) c) 1/2