polymorphism

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Related to Polymorphisms: Genetic 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 ?
Studies have mainly focused on the genetic polymorphisms of CAT gene which exist in coding and non coding regions and less attention has been paid to promoter region polymorphisms.
Several DNA sequence variations known as polymorphisms have been reported in VDR gene.
At least 9 single nucleotide polymorphisms (SNP's) have been known in the exonic gene region23.
sup][4] Genome-wide association studies (GWAS) have identified several susceptibility loci and >200 single nucleotide polymorphisms (SNPs) that have been associated with oligozoospermia and/or azoospermia.
This study aimed to investigate whether single nucleotide polymorphisms (SNPs; +1082G/A, +1730G/A and rs1256030 C/T) in the estrogen receptor beta (ESR2) gene are associated with susceptibility to URSA in a population of Iranian women.
To understand the role of three single nucleotide polymorphisms (SNP) of vitamin D receptor (VDR) gene rs7975232, rs731236 and rs2228570 in Pakistani vitiligo patients and ethnically matched controls.
Reduced activity of antioxidants enzymes because of polymorphisms in antioxidant genes and variations in levels of metals and minerals creates oxidative stress may play some role in progression and pathogenesis of RA.
In addition to these changes, there are several minor, naturally occurring genetic variants of the p53 gene, known as polymorphisms, and some are associated with an increased risk of cancer.
Association of ABCB1 polymorphisms with the efficacy of ondansetron for postoperative nausea and vomiting.
Polymorphisms of the lipoprotein lipase gene as genetic markers for stroke in Colombian population: a case control study
CYP1A1 polymorphisms have been investigated in relation to hormonally-related diseases such as endometriosis, breast cancer, and endometrial adenocarcinoma [14-16].

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