Expression of only one allele of a gene pair; a concept mainly in immunology, not botany.

Genes that occupy the same locus on homologous chromosomes and affect the same trait.

Originating in a place other than where found; in ecology, refers to organic matter transported into an ecosystem.

Genetically different within the same species; used in immunology, rarely in plant science.

An isomer of lactose that acts as an inducer in the lac operon; studied in microbial systems, not plants.

The study of the relative growth of a part of an organism in relation to the whole; used in plant…

Describing populations that are geographically separated; a key concept in plant speciation.

The formation of new species due to geographic isolation; common in plant evolution.

The condition of species or populations living in separate geographic areas.

An organism with multiple sets of chromosomes derived from different species; common in plant evolution and breeding.