genotype

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genotype

 [jen″o-tīp]
1. the entire genetic constitution of an individual; also, the alleles present at one or more specific loci.
2. the type species of a genus. adj., adj genotyp´ic.

gen·o·type

(jen'ō-tīp),
1. The genetic constitution of an individual.
2. Gene combination at one specific locus or any specified combination of loci. For specific blood group genotypes, see Blood Groups Appendix.
[G. genos, birth, descent, + typos, type]

genotype

(jĕn′ə-tīp′, jē′nə-)
n.
1. The genetic makeup, as distinguished from the physical appearance, of an organism or a group of organisms.
2. The combination of alleles located on homologous chromosomes that determines a specific characteristic or trait.
3. A specific combination of alleles at one or more loci on a chromosome.

gen′o·typ′ic (-tĭp′ĭk), gen′o·typ′i·cal adj.
gen′o·typ′i·cal·ly adv.

genotype

Genetics The entire genetic makeup of an organism, the type species of a genus, defined by the complement of allelic forms of each gene or genetic markers present in an organism's genome. See Gene, Genetic marker, Nucleus, Phenotype.

gen·o·type

(jē'nō-tīp)
1. The genetic constitution of an individual.
2. Gene combination at one specific locus or any specified combination of loci.
[G. genos, birth, descent, + typos, type]

genotype

1. The total genetic information contained in a cell.
2. The genetic constitution of an individual organism. Compare PHENOTYPE.

genotype

the genetic constitution of an individual, usually referring to specific CHARACTERS under consideration. Thus, the two alleles of the human albino gene can be written A and a , with three possible genotypes: a/a, A/a and A/A. See DOMINANCE (1) for the expression of the genotype in the PHENOTYPE.

genotype

The complete genetic constitution of an individual at a particular location (locus) in the genome. At many locations (loci) throughout the genome, the chromosomal DNA sequence differs subtly between individuals. Each of the various DNA sequences at one locus is called an allele: for instance, if there are three sequence variants present, then there are three alleles. Offspring inherit one homologous chromosome from each parent. Thus, a genotype comprises two alleles: the allele inherited from the father (carried on the paternal chromosome) and the allele inherited from the mother (carried on the maternal chromosome). See gene; phenotype.

gen·o·type

(jē'nō-tīp)
1. The genetic constitution of an individual.
2. Gene combination at one specific locus or any specified combination of loci.
[G. genos, birth, descent, + typos, type]
References in periodicals archive ?
To examine heritable variation in the traits, regressions of mean offspring phenotypic values on female parent values were performed, based on data from 99 (Cairns), 178 (Gold Coast), and 124 (Cherry Hill) families.
Heritable variation for territorial success in two Drosophila melanogaster populations.
The variable selection pressure on egg size may maintain heritable variation in egg size.
In two populations, MN and MA, QTLs for yield did not explain much of the heritable variation (Table 1 and Fig.
Heritable variation for sex ratio under environmental sex determination in the common snapping turtle (Chelydra serpentina).
By analysis of variance, we have found that the segregation of yield associated with Satt277 accounts for 16.2% of the heritable variation in the NA population.
This raises questions about the relevance of the numerous laboratory studies undertaken on heritable variation to field conditions.
For herbivore species to act singly as selective agents on plant resistance traits, there must be heritable variation in resistance to individual herbivore species (Falconer 1989).
Our focus in this paper is on heritable variation in fitness itself.
The experimental cross between Abrolhos and Penguin Island animals at Fremantle revealed heritable variation in shell shape of B.
(3) Is there heritable variation for phenological characters or genetic correlations between characters that could act as evolutionary constraints?
The earlier models, however, cannot easily compare good genes and direct selection in terms of quantities that have been empirically measured, and those authors did not attempt to do so.The model in this paper has a very specific assumption about good genes: the heritable variation in fitness is maintained by deleterious mutation occurring throughout the genome.