home > q&a board > biology > topic: please help

Q BgQuestion:

Scholar
Karma Points: 239
Respect (51%):
posted by  geena87 on 10/5/2008 12:52:19 AM  |  status: Live  

please help

Course Textbook Chapter Problem
N/A N/A N/A N/A
Question Details:

2. In Drosophila melanogaster (fruit fly), the M/m and R/r allele pairs are found on the same

chromosome pair 12 map units apart. The following cross was made:

M r x m r

m R m r

females tester males

a. What progeny genotypes are expected and in what proportions?

b. If the above cross was performed in reciprocal (i.e. dihybrid males crossed to homozygous

recessive females), what progeny genotypes would you expect and in what proportions?

c. Why would you expect the results for a and b to be different?
Tags: Biology
Bonus Point Alert! Earn +4 additional karma points for helping this annual member.

AAnswers:

Answer Question

No one has answered this question yet.

Be the first to answer. Earn up to 10 karma points.

Answer Question
Ask New Question

Join Cramster's Community

Cramster.com brings together students, educators and subject enthusiasts in an online study community. With around-the-clock expert help and a community of over 100,000 knowledgeable members, you can find the help you need, whenever you need it. Join for free today » How Cramster is different than tutoring »

Need Help In

Useful Links