cistron

Definitions of cistron
  1. noun
    (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity
    synonyms: factor, gene
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    types:
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    dominant gene
    gene that produces the same phenotype in the organism whether or not its allele identical
    allele, allelomorph
    (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character
    genetic marker
    a specific gene that produces a recognizable trait and can be used in family or population studies
    homeotic gene
    one the genes that are involved in embryologic development
    lethal gene
    any gene that has an effect that causes the death of the organism at any stage of life
    linkage group, linked genes
    any pair of genes that tend to be transmitted together
    modifier, modifier gene
    a gene that modifies the effect produced by another gene
    mutant gene
    a gene that has changed so that the normal transmission and expression of a trait is affected
    nonallele
    genes that are not competitors at the same locus
    operator gene
    a gene that activates the production of messenger RNA by adjacent structural genes
    oncogene, transforming gene
    a gene that disposes normal cells to change into cancerous tumor cells
    polygene
    a gene that by itself has little effect on the phenotype but which can act together with others to produce observable variations
    proto-oncogene
    a normal gene that has the potential to become an oncogene
    recessive gene
    gene that produces its characteristic phenotype only when its allele is identical
    regulator gene, regulatory gene
    a gene that produces a repressor substance that inhibits an operator gene
    repressor gene
    gene that prevents a nonallele from being transcribed
    structural gene
    a gene that controls the production of a specific protein or peptide
    suppresser, suppresser gene, suppressor, suppressor gene
    a gene that suppresses the phenotypic expression of another gene (especially of a mutant gene)
    transgene
    an exogenous gene introduced into the genome of another organism
    X-linked gene
    a gene located on an X chromosome
    Y-linked gene, holandric gene
    a gene located on a Y chromosome
    dominant, dominant allele
    an allele that produces the same phenotype whether its paired allele is identical or different
    recessive, recessive allele
    an allele that produces its characteristic phenotype only when its paired allele is identical
    homeobox, homeobox gene
    one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
    CFTR, cystic fibrosis transport regulator
    the gene that is mutated in cystic fibrosis
    tumor suppressor gene
    a suppressor gene that blocks unscheduled cell division
    type of:
    sequence
    serial arrangement in which things follow in logical order or a recurrent pattern
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