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Question:

Labrador retrievers are black, brown, or yellow. In a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies.

26) These results indicate which of the following?

A) Brown is dominant to black.

B) Black is dominant to brown and to yellow.

C) Yellow is dominant to black.

D)There is incomplete dominance.

E) Epistasis is involved.

Answer:

E) Epistasis is involved.

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Last update by Shanal on 11/06/2013
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Question: Labrador retrievers are black, brown, or yellow. In a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies. 26) These results indicate which of the following? A) Brown is dominant to black. B) Black is dominant to brown and to yellow. C) Yellow is dominant to black. D)There is incomplete dominance. E) Epistasis is involved.
Answer: E) Epistasis is involved.