A Strain of a Cereal Grain Can Be Either Dark

question 28

Short Answer

A strain of a cereal grain can be either dark tan, medium-dark tan, medium tan, light tan, or cream colored. When a dark tan and a cream plant are crossed, all F₁ are medium tan. The F₂ are distributed in a ratio of 1:4:6:4:1 from darkest to lightest. How many genes are involved in this coloration?

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Definitions:

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The process of making a person immune or resistant to an infectious disease, typically by the administration of a vaccine.