populations inc hardy weinburg

what is a gene pool

all the alleles of a gene in a population

what is allele frequency

the occurrence of an allele in a population

what does hardy-weinburg calculate

frequencies of alleles in a population

what does hardy-weinburg predict

that allele frequency remains constant from 1 generation to the next

what is a population

a group of organisms of the same species occupying a particular space at a particular time that can potentially interbreed

5 conditions for hardy-weinburg

population is large

population is isolated

random mating

no natural selection

no mutations

p represents

the frequency of the dominant allele

q represents

the frequency of the recessive allele

p+q

1

recessive homozygous frequency

q²

dominant homozygous frequency

p²

heterozygous frequency

2pq

complete principle

p² + 2pq + q² = 1

3 factors that can cause genetic variation

meiosis
random fertilisation of gametes
mutation

what influences discontinuous variation

genetics

what influences continuous variation

genetics and environment
it’s inconclusive which factor is most important

polygenic meaning

lots of genes influence the characteristic