usmc1134b
contestada

The white eye mutation studied by Thomas Hunt Morgan is X-linked and recessive to wild-type red eyes. When true-breeding white-eyed males carrying the white mutation were crossed with true-breeding purple-eyed females, all the F1 progeny had wild-type (red) eyes. When the F1 progeny were intercrossed, the F2 progeny emerged in the following ratio:

3/8 wild-type females
1/4 white-eyed males
3/16 wild-type males
1/8 purple-eyed females
1/16 purple-eyed males

Match the correct genotype with each individual listed below:

___ 1. P Generation Male
___ 2. P Generation Female
___ 3. F1 Generation Male
___ 4. F1 Generation Female
___ 5. F2 Generation Purple-eyed Female
___ 6. F2 Generation White-eyed Male
___ 7. F2 Generation Wild-type Male
___ 8. F2 Generation Purple-eyed Male
___ 9. F2 Generation Wild-type Female


a. none of the above
b. w+_; p+_
c. w+/w+; p/p
d. w/Y; p+/p+
e. w+/_; p/p
f. w+/Y; p+/p
g. w+/w; p+/p
h. w/Y; _ _
i. w+/Y; p/p
j. w+/Y; p+/_