You Are Studying a Highly Inbred Strain of Barley

question 19

Multiple Choice

You are studying a highly inbred strain of barley.After many generations of inbreeding,you now assume that the genetic variation is zero.Suppose that you raise many individuals of your barley strain in a field in southeastern Michigan and then measure their height after one month of growth.You find that the variance in their height is 4.0.The broad-sense heritability of this trait is 0.From this particular study you can conclude that:

• A)genetics does not play a major role in determining the height of barley plants.
• B)if you were to repeat the same experiment in Iowa,you would obtain a different broad-sense heritability.
• C)if you were to repeat the same experiment in Iowa,you would obtain the same broad-sense heritability.
• D)in barley plants,height is not inheritable.
• E)the line of barley plants that you are studying is not inbred enough.

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Definitions:

Psychological Research

The scientific study of the human mind, behaviors, and processes.

Response Rate

The percentage of people selected for a sample who actually completed a survey.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter.

Sampling Frame

The individuals or clusters of individuals in a population who might actually be selected for inclusion in the sample.