Hardy Weinberg Principle (+ key terms)

Question 1

What is a species?

Answer 1

A group of similar organisms that can reproduce to produce fertile, viable offspring

Question 2

What is a population?

Answer 2

A group of organisms of the same species living in a particular area at a particular time

Question 3

What is a gene pool?

Answer 3

Complete range of alleles present in a population

Question 4

Define allele frequency

Answer 4

How often an allele occurs in a population

Question 5

What does the Hardy Weinberg Principle predict?

Answer 5

The frequencies of alleles in a population won’t change

Question 6

What is the Hardy Weinberg Equilibrium?

Answer 6

States that in a large randomly mating population, the allele, genotype and frequency remains constant

Question 7

How is the Hardy Weinberg Equilibrium maintained?

Answer 7

Large population
Random mating
No selection pressures
Close population
No mutations
No genetic drift

Question 8

What is the equation to predict allele frequency?

Answer 8

p + q = 1
p = frequency of dominant allele
q = frequency of recessive allele

Question 9

What is the equation to predict genotype and phenotype frequency?

Answer 9

p^2 + 2pq + q^2 = 1
p^2 = frequency of homozygous dominant genotype
2pq = frequency of heterozygous genotype
q^2 = frequency of homozygous recessive genotype