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The Scatterplots Show the Relation Between the Average Phenotype of Parents

question 58

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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? 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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