Researchers Studying a Small Milkweed Population Note That Some Plants

question 18

Multiple Choice

Researchers studying a small milkweed population note that some plants produce a toxin and other plants do not. They identify the gene responsible for toxin production. The dominant allele (T) codes for an enzyme that makes the toxin, and the recessive allele (t) codes for a nonfunctional enzyme that cannot produce the toxin. Heterozygotes produce an intermediate amount of toxin. The genotypes of all individuals in the population are determined (see chart) and used to determine the actual allele frequencies in the population.
Is this population in Hardy-Weinberg equilibrium?

• A) Yes.
• B) No; there are more heterozygotes than expected.
• C) No; there are more homozygotes than expected.
• D) More information is needed to answer this question.

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Net Income

The total profit of a company after all expenses, including taxes and operating costs, have been deducted from total revenue.

Equity Multiplier

A financial leverage ratio that measures the portion of a company’s assets that is financed by stockholders' equity.

Total Liabilities

The combined amount of a company's short-term and long-term debts, representing claims against the company's assets by outsiders.

Stockholders' Equity

The value remaining in a company after liabilities are subtracted from assets, representing what is owned by the shareholders.