The Hardy-Weinberg Principle Flashcards
What does the Hardy-Weinberg principle state?
If certain conditions are met then the allele frequencies of a gene within a population will not change from one generation to the next.
Why can’t we decide someone’s genotype by looking at their phenotype?
They could be heterozygous
Epistasis
Linkage
Co Dominance etc
What is Hardy-Weinberg used to calculate?
Allele frequency in populations.
What does the Hardy-Weinberg principle allow us to make predictions about?
How allele frequencies may change in the future.
For the Hardy - Weinberg principle, name the
Diploid
Organisms must be produced by sexual reproduction.
Parents must not have mated with offspring.
Population size must be large.
Mating in sample must be random.
There must be no migration, mutation or selection.
Allele frequencies in both sexes must be the same.
Do organisms need to be haploid or diploid for Hardy-Weinberg?
Diploid
What type of reproduction must organisms be produced by when using Hardy-Weinberg?
Sexual reproduction.
For the Hardy - Weinberg principle, what 4 things must NOT happen?
Parents must not mate with offspring
There must not be any migration, mutation or selection.
For the Hardy - Weinberg principle, mating must be…
Random
For the Hardy - Weinberg principle, the population size must be…
Large
For the Hardy - Weinberg principle, how must allele frequency compare in both sexes?
Both sexes must have the same amount of alleles.
For the Hardy - Weinberg principle, what does p + q equal?
p + q = 1
What does p represent?
The frequency of dominant alleles.
What does q represent?
The frequency of recessive alleles.
If individuals are heterozygous, how do we represent this in the equation?
2pq
