A Cross Between Two True-Breeding Strains (P₀ Generation) with Genotypes

question 2

Multiple Choice

A cross between two true-breeding strains (P₀ generation) with genotypes A/A;b/b and a/a;B/B results in an F₁ genotype of A/a;B/b. If this is test-crossed to a/a;b/b, which of the following offspring have parental phenotypes?
Please select all that apply.

• A) A/a;B/b
• B) A/a;b/b
• C) a/a;B/b
• D) a/a;b/b

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Definitions:

Turnover

The rate at which inventory is sold or replaced over a specific period, or in human resources, the rate employees leave and are replaced in a company.

Residual Income

The income that exceeds the minimum required return on investment, often used as a performance measure in managerial accounting.

Required Rate Of Return

The minimum annual percentage return an investor expects to achieve from an investment, considering the risk involved.

Net Operating Income

A financial metric indicating the income generated from a company's core business operations, excluding deductions of taxes and interest.