Which of the Following Crosses Would Produce a 3:1 Ratio

question 21

Multiple Choice

Which of the following crosses would produce a 3:1 ratio of phenotypes in the next generation?

• A) AA × AA
• B) AA × aa
• C) Aa × Aa
• D) Aa × aa
• E) aa × aa

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Definitions:

Relevant

Pertaining to information or data that is directly related and significant to the decision-making process.

Contribution Margin

the difference between the sales revenue of a product and its variable costs; used to cover fixed costs and generate profit.

Variable Costs

Expenses that change in proportion to the amount of goods produced or sold, like labor and material costs.

Contribution Margin

The amount remaining from sales revenue after variable expenses have been deducted, indicating how much revenue is available to cover fixed costs and generate profit.