A population geneticist collected 400 deer mice from the wild. All have normal ears. She raised about 800 animals in each of the following four generations (random mating) and found that all except one male in the fourth generation had normal ears. This male was earless but was otherwise wild-type and fertile.   Suggest 3 possible causes that could lead to the appearance of this earless male. What kinds of experimental crosses would you carry out to distinguish between these three alternatives?

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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Chapter11: The Basic Principles Of Heredity
Section: Chapter Questions
Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...
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  1. A population geneticist collected 400 deer mice from the wild. All have normal ears. She raised about 800 animals in each of the following four generations (random mating) and found that all except one male in the fourth generation had normal ears. This male was earless but was otherwise wild-type and fertile.

 

  1. Suggest 3 possible causes that could lead to the appearance of this earless male.
  2. What kinds of experimental crosses would you carry out to distinguish between these three alternatives?
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