Category: G

  • Genetic drift

    Tendency of a gene to vary randomly without the influence of natural selection. Random fluctuations in the frequencies of certain alleles occurring in small populations. The tendency for variations to occur in the genetic composition of small isolated inbreeding populations by chance. Such populations become genetically rather different from the original population from which they…

  • Gene sequencing

    Analysis of the chemical structure of a gene.  

  • Generitype

    In nomenclature, the type of a genus.  

  • Generic

    Pertaining to a genus. Medicinal product which is an equivalent copy of an approved medicinal product (usually after expiry of the patent protection). Referring to a drug’s basic chemical composition. Referring to medicine which does not have a special trade mark or brand name given to it by its manufacturer. Relating to or characteristic of…

  • Generation

    Complete age group; In ‘alternation of generations’, the regular succession of sexual and asexual phases in ferns.  

  • Genera

    Plural of genus.  

  • Gene pool

    All of the genetic potential of a breeding population. The sum total of genetic material associated with large populations. The sum of the genetic material in the members of a specified population.  

  • Gene flow

    Changes in gene frequency caused by genes coming in from another breeding population. The movement of genes from one group of organisms to another.  

  • Gemmiferous

    Bearing gemmae, Bearing buds.  

  • Gemmate

    Gemmate

    (In pollen) outer surface with processes that are constricted at the base and with a diameter the same as or greater than the height.