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Random mating

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random mating
selection of a mate without regard to genotype

random mating (also panmixia and panmixis) In a population, mating in which all potential reproductive pairings between individuals occur with equal likelihood. Compare: assortative mating.
rare-cutter enzyme See: restriction site.

Random Mating
In order for all alleles to have an equal chance of being passed down to the next generation, mating within the population must be random.

Nonrandom Mating
One of the cornerstones of the Hardy-Weinberg equilibrium is that mating in the population must be random. If individuals (usually females) are choosy in their selection of mates the gene frequencies may become altered.

Non-Random Mating

Nonrandom Mating. A second potential cause of evolution is nonrandom mating. Nonrandom mating usually occurs when individuals choose their mates.

Random mating
See panmixia.
Related Terms:
A mating system in which matings are governed entirely by chance. Also called random mating.

Random mating. The HWP states the population will have the given genotypic frequencies (called Hardy-Weinberg proportions) after a single generation of random mating within the population.

Random mating involves individuals pairing by chance, not according to their genotypes or phenotypes. Nonrandom mating involves individuals inbreeding and assortative mating.

Non-random mating results in a deviation from the Hardy-Weinberg distribution. Humans mate assortatively according to race; we are more likely to mate with someone of own race than another.

asymmetric carbon

Random mating. If individuals pick mates with certain genotypes, or if inbreeding is common, the mixing of gametes will not be random.
No natural selection. Differential survival or reproductive success among genotypes will alter their frequencies.

It compares the sum of observed homozygosity for each allele of a given locus (Fo) with the expected Fe value based on the number of alleles in the locus of interest, neutrality expectations and random mating assumption.

Also called random mating.
Related Terms:
Mating system
The pattern of matings between individuals of a population, including such factors as extent of inbreeding, pair-bonding, and number of simultaneous mates.


Evolution: analogous structures, competition, convergent , directional selection, divergent, evolution, gene, genetic drift, nonrandom mating, speciation, Charles Darwin, competitive exclusion, convergent evolution, differentiation, ...

Herbivore. An organism that consumes plants ...

No mutation,
No natural selection,
The population being large,
No gene flow (due to individuals emigrating or immigrating),
Random mating, ...


See also: See also: Mating, Population, Allele, Organ, Selection

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