GENETICS REVIEWER PT.2

The study of how gene and   genotypic frequencies change and thus change   genetic merit in a population.

The proportion of loci in a   population that contain a particular allele.

The frequency with which a   particular genotype occurs in a population.

The proportion of   individuals in a population that express a   particular phenotype.

are changes in the chemical compositions of a gene that alter DNA.

This  is a change in gene frequency due to chance that cannot be controlled in direction but can be controlled in amount by the size of the population.

The process of bringing new breeding stock into a population.

The process of allowing some animals to be parents more than others.

is based on the fact that some animals are more suited and/or have more natural opportunity to be parents than are others.

is controlled by the herd manager. It is based on management decisions to allow certain animals more opportunity to mate and produce offspring than others.