How Did Bateson and Punnett's Work with Comb Morphology in Chickens

question 37

Multiple Choice

How did Bateson and Punnett's work with comb morphology in chickens differ from the dihybrid work of Mendel?

• A) They were working with sex-limited traits.
• B) Their F2 offspring displayed 4 unique phenotypes, not the four combinations of two phenotypes expected in a Mendelian cross.
• C) ½ of their combinations were lethal.
• D) The expression of their trait varied by the environment in which the chickens were raised.

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