polymorphism

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Related to Genetic polymorphism: Single nucleotide polymorphism

pol·y·mor·phism

 (pŏl′ē-môr′fĭz′əm)
n.
1. Biology The occurrence of more than one form, as several alleles of a particular gene or winged and wingless forms of the same species.
2. Chemistry Crystallization of a compound in at least two distinct forms. Also called pleomorphism.

pol′y·mor′phic, pol′y·mor′phous adj.
pol′y·mor′phous·ly adv.

polymorphism

(ˌpɒlɪˈmɔːfɪzəm)
n
1. (Biology) biology
a. the occurrence of more than one form of individual in a single species within an interbreeding population
b. the occurrence of more than one form in the individual polyps of a coelenterate colony
2. (Chemistry) the existence or formation of different types of crystal of the same chemical compound

pol•y•mor•phism

(ˌpɒl iˈmɔr fɪz əm)

n.
1. the state or condition of being polymorphous.
2.
a. genetic variation that produces differing characteristics in individuals of the same population or species.
b. the occurrence of different castes or types within the same sex, as in social ants.
3. crystallization into two or more chemically identical but crystallographically distinct forms.
[1830–40]
pol`y•mor′phic, adj.

pol·y·mor·phism

(pŏl′ē-môr′fĭz′əm)
1. The existence of two or more different forms in an adult organism of the same species, as of an insect. In bees, the presence of queen, worker, and drone is an example of polymorphism. Differences between the sexes and between breeds of domesticated animals are not considered examples of polymorphism.
2. The crystallization of a compound in at least two distinct forms. Diamond and graphite, for example, are polymorphs of the element carbon. They both consist entirely of carbon but have different crystal structures and different physical properties.

polymorphism

the occurrence of several forms or colors in one species of insect. — polymorphous, adj.
See also: Insects
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.polymorphism - (genetics) the genetic variation within a population that natural selection can operate on
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
organic phenomenon - (biology) a natural phenomenon involving living plants and animals
single nucleotide polymorphism, SNP - (genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species
2.polymorphism - (chemistry) the existence of different kinds of crystal of the same chemical compound
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
chemical phenomenon - any natural phenomenon involving chemistry (as changes to atoms or molecules)
dimorphism - (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms
3.polymorphism - (biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)
biological science, biology - the science that studies living organisms
organic phenomenon - (biology) a natural phenomenon involving living plants and animals
dimorphism - (biology) the existence of two forms of individual within the same animal species (independent of sex differences)

polymorphism

noun
Biology. The quality of being made of many different elements, forms, kinds, or individuals:
Translations
mnohotvarost
polimorfizamvišeobličje
同質異像多形多形性多態
polymorfisme

polymorphism

[ˌpɒlɪˈmɔːfɪzəm] Npolimorfismo m

polymorphism

References in periodicals archive ?
The recently described A(-290)G genetic polymorphism in the 5' regulatory region potentially alters the transcription efficiency and thus the overall enzymatic activity of CYP3A4.
Reference: Sconce, et al The impact of CYP2C9 and VKORC1 genetic polymorphism and patient characteristics upon warfarin dose requirements: proposal for a new dosing regimen.
KEY WORDS: air pollution, genetic polymorphism, lung function, metals, particles.
Immunoassays for Lp(a) differ widely from each other regarding their sensitivity to the apo(a) genetic polymorphism.
In the case of 5-FU," said Salamone, "2 to 3% of the population are predisposed to severe toxic side effects due to a genetic polymorphism and other factors.
The latter part of the section uses selected examples of genetic polymorphism in genes encoding receptors and ion channels to illustrate biochemical, pharmacologic, and clinical consequences.
A genetic polymorphism in the metabolism of the anticonvulsant drug mephenytoin in humans is a prime example of interracial and individual variability in drug metabolism.
Genetic polymorphism has been linked to three classes of phenotypes based on the extent of drug metabolism.
A possible interaction between environmental risk factor and genetic polymorphism in mitochondrial genes and in genes involved in detoxification of metabolites has been intensively searched, with inconsistent results (Tan et al.
As pointed out in the Morbidity and Mortality Weekly Report, these groups include Hispanic women, who may not consume as much folic acid or are at a greater risk of having a genetic polymorphism that makes them more susceptible to a folate insufficiency.
Kathryn Hall, PhD, said that this was one of the few cases where it could be identified that a single genetic polymorphism which has a significant interaction with aspirin such that it affects whether or not it protects against cardiovascular disease.