noun Genetics.

  1. the genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complex of traits.
  2. the sum total of genes transmitted from parent to offspring.


  1. the genetic constitution of an organism
  2. a group of organisms with the same genetic constitution

“genetic constitution of an individual,” 1910, from German Genotypus (Wilhelm Johannsen, 1909); see gene + type. Earlier the same word was used with a sense of “type species of a genus” (1897); in this case, the first element is from genus.


  1. The genetic constitution of an organism or a group of organisms.
  2. A group or class of organisms having the same genetic constitution.

  1. The genetic makeup of an organism as distinguished from its physical characteristics. Compare phenotype.

A combination of alleles situated on corresponding chromosomes that determines a specific trait.

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