A Quantitative Geneticist Measures the Broad-Sense Heritability for Bill Length

question 5

Multiple Choice

A quantitative geneticist measures the broad-sense heritability for bill length in an isolated population of ducks to be 0.75.This result suggests that:

• A)the population tested has a high variance in bill length.
• B)in the population tested,75% of the variance in bill length is due to genetic differences among individuals.
• C)in the population tested,75% of the variance in bill length is due to environmental differences among the individuals' microhabitats.
• D)if all the ducks in the population tested were raised in identical environments,75% of them would have identical bill length.
• E)in the population tested,75% of the ducks have a bill length that is within one standard deviation of the mean.

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