Hardy-Weinberg Flashcards
What is meant by the term ‘gene pool’?
all of the alleles of all the genes within a population at one time
What is meant by the term ‘population’?
all the individuals of one species in one area at one time
What is meant by the term ‘allele frequency’?
the proportion of an allele within the gene pool
What does p represent?
dominant allele
What does q represent?
recessive allele
What are the Hardy-Weinberg equations?
p^2 + 2pq + q^2 = 1
p + q = 1
What doe p^2 represent?
the frequency of homozygous dominant genotype
What does q^2 represent?
the frequency of the homozygous recessive genotype
What does 2pq represent?
the frequency of the heterozygous genotype
What does Hardy-Weinberg predict?
- frequency of alleles in a population
- does not change/stays constant
- no mutations or selection
What are 3 assumptions made when using Hardy-Weinberg principle?
- no selection
- no emigration/immigration
- random mating
- no mutations