A reproduction or sex cell, especially one capable of participating in fertilization.
Prezygotic isolating mechanism that occurs when fertilization cannot
take place between species.
Part of a cell located on a chromosome that determines a particular
characteristic of an organism.
Occurs when an individual or group of individuals migrate to (or
from) one population to (or from) another and interbreed with its members. Also
known as Gene Migration or Migration.
Mutation which generally affects only a few sequences within a gene.
Two genes on homologous chromosomes, one inherited from each parent,
which come together to determine one or part of a given trait.
The sum total of all of the genes and combinations of genes that
occur in a population of organisms of the same species. Also known as Genus.
Organisms of the same age or period.
Process of pure chance by which gene frequencies can change with no
external stimuli.
The term applied to laboratory techniques that alter the genes
(hereditary material) of an organism.
A numeric estimation of the proportion of genes that are identical
between two populations.
Quantity and distance by which genes differ from organism to
organism within the same gene pool.
The scientific study of how physical, biochemical, and behavioral
traits are transmitted from parents to offspring.
The genetic constitution of an organism.
The separation of populations via physical barriers.
The sprouting of a seed.