backcross mating

backcross mating
the mating of a heterozygote and a recessive homozygote; useful in revealing, through the phenotypes of the offspring, the genotype of the heterozygous parent.

Medical dictionary. 2011.

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  • backcross — /bak kraws , kros /, Genetics. v.t. 1. to cross (a hybrid of the first generation) with either of its parents. n. 2. an instance of such crossing. [1900 05; BACK2 + CROSS] * * * ▪ genetics       the mating of a hybrid organism (offspring of… …   Universalium

  • backcross — 1. Mating of an individual heterozygous at one or more loci to an individual homozygous at the same loci. 2. SYN: testcross. * * * back·cross bak .krȯs vt to cross (a first generation hybrid) with one of the parental types backcross n a mating… …   Medical dictionary

  • backcross — I. transitive verb Date: 1904 to cross (a first generation hybrid) with one of the parental types II. noun Date: 1918 a mating that involves backcrossing; also an individual produced by backcrossing …   New Collegiate Dictionary

  • heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …   Universalium

  • plant breeding — Introduction       application of genetic (genetics) principles to produce plants that are more useful to humans. This is accomplished by selecting plants found to be economically or aesthetically desirable, first by controlling the mating of… …   Universalium

  • inbreeding — /in bree ding/, n. Biol. the mating of closely related individuals, as cousins, sire daughter, brother sister, or self fertilized plants, which tends to increase the number of individuals that are homozygous for a trait and therefore increases… …   Universalium

  • Hybrid (biology) — In biology and specifically, genetics, the term hybrid has several meanings, all referring to the offspring of sexual reproduction.[1] In general usage, hybrid is synonymous with heterozygous: any offspring resulting from the mating of two… …   Wikipedia

  • Hybrid zone — A hybrid zone exists where the ranges of two interbreeding species meet. For a hybrid zone to be stable, the offspring produced by the cross (the hybrids) have to be less fit than members of the parent species, although this condition does not… …   Wikipedia

  • List of genetics-related topics — This is a list of terms related to genetics. NOTOC # * 3 end * 5 end A * Acentric chromosome * Achondroplasia * Active site * Adam s Curse * Adaptation * Adenine * Adenosine * Adenovirus * Adenosine diphosphate (ADP) * Ala * Alagille syndrome *… …   Wikipedia

  • lizard — /liz euhrd/, n. 1. any of numerous scaly reptiles of the suborder Sauria, order Squamata, typically having a moderately elongate body, a tapering tail, and two pairs of legs held outward from the body, comprising mostly terrestrial and burrowing… …   Universalium

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