Primroses Have White Flowers When Grown Above 32°C but Red

question 49

Multiple Choice

Primroses have white flowers when grown above 32°C but red flowers when grown at 24°C. This interaction between phenotypic expression and environment is an example of

• A) epistasis.
• B) polygenic traits.
• C) pleiotropy.
• D) multiple allelism.
• E) codominance.

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