The Scatterplots Show the Relation Between the Average Phenotype of Parents

question 58

Multiple Choice

The scatterplots show the relation between the average phenotype of parents (x-axis) and that of their offspring (y-axis) for two traits in a variety of tropical sweet corn. One trait is ear height, which has a heritability of 75%; and the other is ear length, which has a heritability of 25%. To make the axes comparable, for each trait the phenotypic measurement is expressed as a deviation from the overall mean in multiples of the standard deviation. Which of the following matchups is CORRECT?

• A)Ear length is trait K and ear height is trait Q.
• B)Ear length is trait Q and ear height is trait K.
• C)Ear length and ear height are both trait K.
• D)Ear length and ear height are both trait Q.

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Definitions:

Correspondent Inference

A theory suggesting that observers try to infer an actor's internal states or dispositions from observed behavior.

Hedonic Relevance

The significance or relevance of an event or object based on the pleasure or pain it can produce.

Emotionally Desirable

Attributes or situations that are appealing or sought after due to the positive emotions they elicit.

Discounting Principle

A concept in social psychology that suggests when there are multiple possible causes for a behavior, less significance is given to any single cause.