. As we learned in this chapter, the white mutation ofDrosophila studied by Thomas Hunt Morgan isX-linked and recessive to wild type. When truebreeding white-eyed males carrying this mutationwere crossed with true-breeding purple-eyed females,all the F1 progeny had wild-type (red) eyes. When theF1 progeny were intercrossed, the F2 progeny emergedin the ratio 3/8 wild-type females: 1/4 white-eyedmales: 3/16 wild-type males: 1/8 purple-eyed females:1/16 purple-eyed males.a. Formulate a hypothesis to explain the inheritanceof these eye colors.b. Predict the F1 and F2 progeny if the parental crosswas reversed (that is, if the parental cross wasbetween true-breeding white-eyed females andtrue-breeding purple-eyed males).
. As we learned in this chapter, the white mutation of
Drosophila studied by Thomas Hunt Morgan is
X-linked and recessive to wild type. When truebreeding white-eyed males carrying this 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 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.
a. Formulate a hypothesis to explain the inheritance
of these eye colors.
b. Predict the F1 and F2 progeny if the parental cross
was reversed (that is, if the parental cross was
between true-breeding white-eyed females and
true-breeding purple-eyed males).
Trending now
This is a popular solution!
Step by step
Solved in 2 steps