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in a population of geese, the narrow-sense heritability for wing span is 0.5. the phenotypic variance is 0.8 and the environmental inheritance is 0.2. what is the additive genetic variance?

Answer :

Additive genetic variance=  VA = 0.32

h2 = VA/VP

0.4 = vA / 0.8

VA = 0.32

Moreover, The head width decrease. Both trait is inversely proportional due to negative correlation. If we select wing length is increase, result in decrease of head width due to negative correlation.

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