Imagine a test cross for an unknown exhibiting 2 traits, where half of the offspring exhibit both dominant traits and the other half exhibits one dominant and one recessive trait.  What can you conclude about the unknown? options:   A) The unknown is homozygous dominant for both traits.   B) The unknown is homozygous recessive for both traits.   C) The unknown is heterozygous for both traits.   D) The unknown is homozygous for one gene and heterozygous for the other.    E) There is not enough information to determine the answer.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Imagine a test cross for an unknown exhibiting 2 traits, where half of the offspring exhibit both dominant traits and the other half exhibits one dominant and one recessive trait.  What can you conclude about the unknown?

options:
 

A) The unknown is homozygous dominant for both traits.

 

B) The unknown is homozygous recessive for both traits.

 

C) The unknown is heterozygous for both traits.

 

D) The unknown is homozygous for one gene and heterozygous for the other. 

 

E) There is not enough information to determine the answer.

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