Biology Forum › Genetics › help me!!!
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- December 23, 2008 at 8:03 pm #10647
bsk89Participantin drosophila, the mutation for ebony body color is recessive and autosomal (e), and the white eyed mutation is recessive and X-linked. Determine the phenotype and phenotypic ratios of the F1 and F2 generations for the following;
a)white eyed, ebony bodied female x pure breeding wild type male
b)reciprocal crossi am helpless, i cannot figure out what the results should be! i beg, please someone help me!!! 😳
- December 31, 2008 at 9:05 am #88175GreenDogParticipant
Just because i like answering this type of questions:
Hint:
a)the cross is female white eye X linked: Xw Xw male XW 0
X
ebony autosomal Ae Ae AE AEnow draw the table to get all F1 progeny, divide to male an female: the females will be red eyed and brown, and the males white eyed and brown. F2 is a bit more work.
The only thing you have to do is write the crosses and then list all the possibilities, not interesting and not complicated.
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