Question

A cross between a fruit fly with wild type traits of red eyes and long aristae...

A cross between a fruit fly with wild type traits of red eyes and long aristae (antennae) and a double mutant parent with brown eyes and short aristae resulted in the following offspring progeny: 136 red eyes , long aristae, 154 brown eyes, short aristae, 702 red eyes, short aristae, and 765 brown eyes, long aristae.

a) Calculate the recombination frequency. In your response, please write out the equation and show your calculations for full credit.

b) Are the two genes for these characters (eye color and aristae) linked or unlinked? Please explain how you know.

c) Is independent assortment occurring between the two genes? Explain how you know.

Homework Answers

Answer #1

Part c. The linked genes does not show independent assortment.

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