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Dictionary » D » Duplication

Duplication

Definition

noun

(general) The act or process of duplicating; the state of being duplicated; a doubling.

(biology) The state or act of dividing as a natural process of growth or a spontaneous action.

(genetics) The act or process of duplicating or repeating a region in the genetic material or chromosome, as in gene duplication and chromosomal duplication.

(pathology) A disorder in which a body part is duplicated, such as in diprosopus (a craniofacial duplication) and diphalia (a penile duplication).


Supplement

Word origin: Latin duplicātiōn- (s. of duplicātiō), equiv. to duplicāt(us) + -iōn.
Related form: duplicate.

Related term: gene duplication.


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Genome duplication

Evidence suggests that at some points in time most of species alive today undergone whole genome duplications. Presumably, these events occurred to prevent extinction of those species which threatened those species after diversification event(http://mbe.oxfordjournals.org/content/23/5/887.full.pdf+html). ...

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by Cat
Sun Oct 14, 2012 5:07 pm
 
Forum: Evolution
Topic: Genome duplication
Replies: 0
Views: 559

Re: aneuploidy and polyploidy

... plants suggests that this condition has not been able to adapt to higher life forms and so, isn't as complex or problematic. It only concerns the duplication of all chromosomes, not the absence or excessiveness of certain chromosomes. I really hope this helps and that the information isn't too ...

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by carmodyf
Thu Oct 11, 2012 4:36 am
 
Forum: Cell Biology
Topic: aneuploidy and polyploidy
Replies: 2
Views: 1946

Evolution is not Darwinian

... as we knew it but also another central tenet of the modern synthesis inherited from Darwin, namely gradualism. In a world dominated by HGT, gene duplication, gene loss and such momentous events as endosymbiosis, the idea of evolution being driven primarily by infinitesimal heritable changes in ...

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by Forests
Wed Sep 26, 2012 3:29 pm
 
Forum: Evolution
Topic: Evolution is not Darwinian
Replies: 4
Views: 2197

Re:

... as we knew it but also another central tenet of the modern synthesis inherited from Darwin, namely gradualism. In a world dominated by HGT, gene duplication, gene loss and such momentous events as endosymbiosis, the idea of evolution being driven primarily by infinitesimal heritable changes in ...

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by Forests
Sat Sep 15, 2012 4:21 pm
 
Forum: Evolution
Topic: Has evolution moved beyond neoDarwinism?
Replies: 8
Views: 5630

Re: Evolution or De-evolution?

... to autism, I think it’s time to rethink this conclusion. (http://www.ncbi.nlm.nih.gov/pubmed/16151044). My second problem is the idea of genome duplication. At first the genome duplication was said to be the driving force of evolution by providing the genetic material for mutations leading to ...

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by Cat
Sun Sep 09, 2012 5:35 pm
 
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 43
Views: 19575
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