Dictionary » P » Polymorphism

Polymorphism

Definition

noun

(general) The ability to assume different forms or shapes.

(biology) The occurrence of more than one kind or form of organisms of the same species that exist together in one locality.

(chemistry) Crystallization of a compound in at least two distinct forms.


Supplement

(biology) Polymorphism occurs when different phenotypes exist in the same population of a species. It is independent of sexual variations, and not connected by intermediate gradations but produced from common parents.

The most common example of polymorphism is sexual dimorphism in most higher organisms.


Word origin: From Ancient Greek poly (many) + morph (form) + -ism.
Related forms: polymorphic (adjective), polymorph (noun).

Variant: morph

Compare: pleomorphism.

Related term: genetic polymorphism


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Polymorphism and Mutation

... replaced or deleted from a strand of DNA. This may cause the individual some discomfort or problems but is normally isolated to the individual. A polymorphism is a distinct population of genes that have changed enough to create variation within a group. It is these changes that can lead to evolutionary ...

See entire post
by Babybel56
Wed Mar 05, 2014 3:39 am
 
Forum: Molecular Biology
Topic: Polymorphism and Mutation
Replies: 2
Views: 1587

Polymorphism and Mutation

What is the difference between Gene Polymorphism and Gene Mutation :?: :?: :?: please give a clear concept. :|

See entire post
by Helics
Tue Mar 04, 2014 4:33 pm
 
Forum: Molecular Biology
Topic: Polymorphism and Mutation
Replies: 2
Views: 1587

cell specific markers

... They show high ethnic diversity, and they are involved in the detoxification of toxic substances. The notion is that ethnic groups with specific polymorphisms in a cytochrome P450 gene may be less able to detoxify a specifically designed biological or chemical weapon and thus be more susceptible ...

See entire post
by MarkHolland
Sat Mar 30, 2013 3:16 pm
 
Forum: Cell Biology
Topic: cell specific markers
Replies: 3
Views: 5993

Re: Muscular dystrophy inheritance question

... is heterozygous (at least over the sequence given in the lower traces). The female might have a splice site mutation, as the sequence across the polymorphism is either ATGTGAAG or ATGGGAAG and a GT, present in only one allele, is the canonical start of an intron sequence (other factors such as ...

See entire post
by jonmoulton
Thu Jan 10, 2013 3:59 pm
 
Forum: Molecular Biology
Topic: Muscular dystrophy inheritance question
Replies: 7
Views: 5368

Re: Muscular dystrophy inheritance question

... female has two copies of the dystrophin gene that differ slightly, this can give rise to the two traces in the sequence (it's a single-nucleotide polymorphism). This suggests the female may be a carrier with a DMD allele and a wild-type allele for dystrophin, but the pedigree makes it look like ...

See entire post
by firefly
Wed Jan 09, 2013 9:16 pm
 
Forum: Molecular Biology
Topic: Muscular dystrophy inheritance question
Replies: 7
Views: 5368
View all matching forum results

This page was last modified 00:08, 6 December 2008. This page has been accessed 14,102 times. 
What links here | Related changes | Permanent link