Question
You have conducted a study of Body Mass Index (BMI) on siblings who were adopted and reared in different families. The covariance of BMI for
You have conducted a study of Body Mass Index (BMI) on siblings who were adopted and reared in different families.
The covariance of BMI forhalf-siblings in the dataset is 1.04284.
The covariance of BMI forfull-siblings in the dataset is 2.23848.
a.) Estimate the additive genetic variance for the trait, V[a]
b.) Estimate the dominance genetic variance for the trait, V[d].
c.) Based on variation in the population overall, you have estimated the phenotypic variance for BMI as 5.76. Use this finding and your results above to estimate narrow-sense heritability for the trait, h2.
d.) Estimate the broad-sense heritability for the trait, H2.
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Calculus
Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon
9th edition
131429248, 978-0131429246
