Genetic Variance from a Single Locus

The purpose of this Applet is to examine the ratio of additive genetic variance to dominance genetic variance at a single locus. To execute this Applet, enter the genetic value for the heterozygote Aa. This value can range between -1.0 and 1.0. A value of -1.0 implies that allele a is dominant, a value of 0.0 implies that the system is totally additive, and a value of 1.0 implies that allele A is dominant. Values between -1.0 and 0.0 (or between 0.0 and 1.0) imply partial dominance. The second value to enter is the frequency of allele a. Naturally, this value must lie between 0.0 and 1.0.

Do the following exercises: