Determining the slope of the best-fit line for a data set of midparent versus midoffspring values by utilizing least-squares linear regression generates an estimate of heritability known as the ________.
A) phenotypic variation
B) environmental variation
C) broad-sense heritability
D) narrow-sense heritability

Question

Quizplus · Accepted Answer

Narrow-sense heritability is estimated by determining the slope of the best-fit line for a data set of midparent versus midoffspring values using least-squares linear regression. This method specifically estimates the proportion of phenotypic variation that is due to additive genetic factors, which is what narrow-sense heritability represents.

Determining the Slope of the Best-Fit Line for a Data