In Drosophila, white eye is inherited as an X-linked recessive. Apterous wing is inherited as an autosomal recessive trait.  A female heterozygous at both loci is crossed with a white eyed male that is heterozygous for apterous.  Of all the offspring, what fraction will be female and white eyed?       a. 1/2   b. 3/4   c. 1/4   d. none

Concepts of Biology
1st Edition
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:Samantha Fowler, Rebecca Roush, James Wise
Chapter8: Patterns Of Inheritance
Section: Chapter Questions
Problem 12RQ: In a cross between a homozygous red-eyed female fruit fly and a white-eyed male fruit fly, what is...
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In Drosophila, white eye is inherited as an X-linked recessive. Apterous wing is inherited as an autosomal recessive trait.  A female heterozygous at both loci is crossed with a white eyed male that is heterozygous for apterous. 

Of all the offspring, what fraction will be female and white eyed?

   

  a.

1/2

  b.

3/4

  c.

1/4

  d.

none

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