Variations of a given gene.
The frequency with which a particular allele appears among the possible
alleles in a population.
The probability that an individual will contribute its genes to the next
Random changes in allelic frequencies due to chance rather than selection.
An equation used to find the allele frequencies in a population at Hardy-Weinberg equilibrium. For a two allele system, the Hardy-Weinberg equation
(p + q)2 = 1
2 +2pq + q
2 = 1
A state in which phenotypic and allelic frequencies remain constant from
generation to generation in sexually reproducing populations.
The theory holding that competition exists within species, determining which
species live to have offspring and pass their traits on to those offspring.
The traits or characteristics an individual displays.