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ANSC*6370 QG and Animal Models
Fall 03 - Quiz 1

1.

List the five assumptions necessary for Hardy-Weinberg equilibrium to exist at a single locus.

1

Large population

2

Random mating

3

No selection

4

No migration

5

No mutation

2.

Assume a single autosomal locus with 2 alleles, and the following frequencies of each genotype for a particular population.

Genotypes	Value	Frequencies
A1A1	2	.17
A1A2	1	.58
A2A2	3	.25

Answer the following questions.

(a)

Calculate the frequency of the A₁ allele.

p = .17 + (.58/2) = 0.46.

(b)

Is this population in Hardy-Weinberg Equilibrium?

No

(c)

What is the genetic mean? $\mu = 1.67$

(d)

What is the total genetic variance?

$\sigma_{g} = 0.7211$