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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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Results from our forum


Why not hundreds of different sexes, why only two ?

And there are many of them, in fungi. Diploid duplication mutations probably "set up" the possibility of two-contributor sexual exchange, and triploidy is a harder thing to survive. Where there are two genders, the two have developed particular ...

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by Darby
Sun Aug 16, 2009 8:44 pm
 
Forum: Evolution
Topic: Why not hundreds of different sexes, why only two ?
Replies: 2
Views: 94

chromosome 2 replication.

the chromosome duplication is considered the replecation phase of the cell cycle, specifically distinct from the mitosis phase when the cell splits the replicated chromosomes. There is a whole phase inbetween the two (G2). But that's ...

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by Eous
Mon Aug 03, 2009 2:23 am
 
Forum: Genetics
Topic: chromosome 2 replication.
Replies: 4
Views: 151

chromosome 2 replication.

... the the result of a fusion of two chromosomes and it therefore contains 2 centromeres and 4 telomeres. My question is this, durning the chromosome duplication at the start of mitosis how does the area in between the two centromeres get copied, as i was under the impression the cromosome was copied ...

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by bgyuk
Sat Aug 01, 2009 6:23 pm
 
Forum: Genetics
Topic: chromosome 2 replication.
Replies: 4
Views: 151

question

... until one of them loses the original activity; then the copy that retains the activity must bear the burden of selective pressure, as before the duplication event, while the now transformed copy is free(er) to develop in some new direction.

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by blcr11
Thu Sep 04, 2008 3:00 pm
 
Forum: Genetics
Topic: question
Replies: 1
Views: 609

question

... "Interestingly, Duplicate pairs within families are not more likely to share cis motif structure than duplicate pairs from ancient genome duplication. For some gene families, there may be less selective constraint because there are more gene copies and therefore a greater plasticity for ...

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by youknowwho1
Tue Sep 02, 2008 3:12 am
 
Forum: Genetics
Topic: question
Replies: 1
Views: 609
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