In each of the case populations below determine if populatio

In each of the case populations below determine if population (given) is in H/W equilibrium. Next determine the genotypic proportions when the population reaches equilibrium for credit. Population: 0.2AA 0.8Aa 0.0aa Population: 1.0AA 0.0Aa 0.0 aa Population: 0.5AA 0.2Aa 0.3aa Population: 0.36AA 0.48Aa 0.16aa Population: 0.9AA 0.1Aa 0.0aa

Solution

A population in genetic equilibrium after a generation of mating will have the following genotype frequencies:

p2     2pq     q2

AA Aa aa

A

0.6

a

0.4

A

(0.6)

a

(0.4)

To determine if our pea population is at Hardy-Weinberg equilibrium, we need to see ithe values of p and q into the above equation and see if these genotype frequencies match those we initially calculated.

0.6 * 0.6 + 2 * 0.6 * 0.4 + 0.4 * 0.4 = 1

The frequency of the AA genotype is 0.36
The frequency of the Aa genotype is 0.48
The frequency of the aa genotype is 0.16

	A	a
A	AA	Aa
a	Aa	aa