Related Words

Genotype: The genetic (alleleic) makeup of an organism with regard to an observed trait.

Haplotype: A way of denoting the collective genotype of a number of closely linked loci on a chromosome.

Chimera (Pl Chimaera): An organism that contains cells or tissues with a different genotype. These can be mutated cells of the host organism or cells from a different organism or species.

Identical Twin: Twins produced by the division of a single zygote: both have identical genotypes.

Somatic Mutation: A mutation occurring in any cell that is not destined to become a germ cell: if the mutant cell continues to divide, the individual will come to contain a patch of tissue of genotype differe . . . View Full Definition

Selection: A change in allele frequency over time in a population

Pinot Noir: Belongs to the premier Pinot grape 'cépage' of the Burgundy region of France. Recently (2002) recognized that the progenitors of the cépage are most likely Traminer and a clonal selection, o . . . View Full Definition

Heritable Character: A morphological character whose given state can be explained partially in terms of the genotype of the individual

Test Cross: Genetic crossing of an organism with known genotype (one that exhibits the recessive phenotype) with an individual expressing the dominant phenotype but of unknown heritage.

Pleiotropic: A term describing a genotype with multiple phenotypic effects. For example: sickle-cell anemia produces a multitude of consequences in those it affects, such as heart disease, jidney problem, etc.