populations

Question 1

1. What is the H-W equation for genotype frequency?

Answer 1

p2 + 2pq + q2 = 1

Question 2

2. What is the H-W equation for allele frequency?

Answer 2

p + q = 1

Question 3

3. What do you always need to work out first in H-W calculations?

Answer 3

The frequency of the recessive genotype/phenotype which is q2

Question 4

4. What is a gene pool?

Answer 4

All the alleles of all the genes in a population;

Question 5

5. What is allele frequency?

Answer 5

The number of times the allele appears within the gene pool as a proportion of the total number of alleles. The number will be between 0 and 1.

Question 6

6. Describe how you would use the Hardy-Weinberg equation to calculate the frequency of carriers/heterozygotes of the allele.

Answer 6

find frequency of homozygous recessive q2; Find square root of q2; Use of p + q = 1.0 to determine frequency of both alleles; Use of 2pq to find carriers/heterozygotes;

Question 7

7. What does the Hardy-Weinberg principle predict?

Answer 7

The frequency of alleles of a particular gene; Will stay constant from one generation to the next ; Providing no mutation, no selection, a population large, population
genetically isolated, mating at random, no migration;

Question 8

8. What are the assumptions for using the Hardy-Weinberg equation?

Answer 8

All genotypes equally fertile; Large population;
Random mating; No mutation; No emigration or immigration;