Question 74

(Multiple Choice)

Use the following information to answer the questions below.
Drosophila (fruit flies)usually have long wings (+)but mutations in two different genes can result in bent wings (bt)or vestigial wings (vg).
-If flies that are heterozygous for both the bent wing gene and the vestigial wing gene are mated,what is the probability of offspring with bent wings only?


A)1/8
B)3/8
C)1/4
D)9/16
E)3/16

Answer