A Scientist Measured Heritability in Yield Per Acre of a Strain

question 65

Multiple Choice

A scientist measured heritability in yield per acre of a strain of wheat grown on a farm in eastern Europe and determined that it was 80%. She can therefore conclude that:

• A)80% of variation among individuals when the same strain of wheat is grown in Nebraska will be due to genetic differences.
• B)80% of variation among individuals when the same strain of wheat is grown on the same farm in eastern Europe the following year will be due to genetic differences.
• C)when the same strain of wheat is grown on two different farms at the same time, 80% of the average difference in yield per acre will be due to genetic differences among populations.
• D)80% of the total yield is due to genotype and 20% to environment.
• E)None of the answer options is correct.

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Definitions:

Fasting

The act of willingly refraining from some or all food, drink, or both, for a period of time.

Breakfast

The first meal of the day, usually eaten in the morning, considered important for providing the necessary energy and nutrients after an overnight fast.

Steroid Hormones

Lipid-soluble hormones derived from cholesterol, including sex hormones and corticosteroids, that regulate various body functions.

G-Protein Linked Receptors

A class of cell surface receptors that initiate a variety of cellular responses by activating G-proteins.