Non-Random Mating exam Flashcards

Occurs when certain genotypes are more likely to mate, affecting genotype frequencies without altering allele frequencies.

A form of non-random mating that increases homozygosity by mating between relatives.

A principle stating that allele and genotype frequencies in a population will remain constant in the absence of evolutionary influences.

No, it affects genotype frequencies but does not alter allele frequencies, thus not causing evolution.

A reduction in fitness due to the expression of deleterious recessive alleles in homozygous individuals.

A measure of how many homozygotes are present in a population.

A form of natural selection where certain traits increase an individual's chances of mating.

It disrupts Hardy-Weinberg equilibrium by altering genotype frequencies.

Harmful alleles that can cause a decrease in fitness when expressed in a homozygous state.

Natural selection is required to change allele frequencies and drive evolutionary change.

A factor that often leads to non-random mating as organisms are more likely to mate with those nearby.

Increases homozygosity in the population.

A seemingly random process where pollen is distributed by the wind, but still limited by distance.

By increasing the likelihood of homozygous deleterious recessive alleles, reducing fitness.

The proportion of different genotypes in a population.

It is not the same as sexual selection; non-random mating assumes all alleles are passed on, just not randomly paired.

The ability of an organism to survive and reproduce, passing on its genes to the next generation.

They are more likely to be paired together, exposing deleterious phenotypes.

The process where organisms better adapted to their environment tend to survive and produce more offspring.

It does not affect allele frequencies directly; natural selection is needed for that.

The study of how and why populations change over time.

Natural selection can act on the increased homozygosity to change allele frequencies and drive evolution.

Random mating among individuals in the population.

Organisms are more likely to mate with those that are geographically closer.

It pushes the population out of Hardy-Weinberg equilibrium by altering genotype frequencies.