Two populations of a species of falcons that were inbred in captivity have diffe

Question

Two populations of a species of falcons that were inbred in captivity have different mean wingspans of 56 and 88 centimeters. The two populations were crossed and the mean and standard deviation for wingspan in the offspring were 71 and 9, respectively. The offspring are crossed, and the next generation of falcons has a mean and standard deviation of 72 and 20, respectively.

A) What is the genetic variance for this trait?

B) Could parent falcons transmit more than half of the total phenotypic variance for this trait to their offspring? Briefly explain how you could determine this or explain why there is insufficient information to answer the question

Explanation / Answer

The additive genetic variance is the most important for sexually reproducing species, because only the additive effects of genes are passed on directly from parents to offspring.

V1= (standard deviation1)2

=92= 81

V2= 202= 400

V= V1+V2 = 81+400= 481

genetic variance of this trait is 481

heritability in offsprings = 400/481= 0.83

heritably at first generation = 81/481= 0.16

yes parent can transfer 0.83 or 83% of their trait to parent.

However the information is incomplete because the environment factors of Ve, non additive variation not given, genetic interaction not clear. After having these factors we can calculate exact heritability.

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