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Dictionary » R » Replication

Replication

replication

1. A turning back of a part so as to form a duplication.

2. (Science: molecular biology) The process of duplicating or reproducing, as the replication of an exact copy of a polynucleotide strand of dNA or rNA.

Origin: L. Replicatio = a fold backwards (genetics) the process whereby DNA makes a copy of itself before cell division.The synthesis of an exact copy of a structure from a template of the same structure.


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Stem and Progenitor Cell Questions

... (still only pluripotent and not totipotent) and no cell lineage cells at that time/location. They can proceed to become asymmetrical in their replication when they encounter a signaling factor that is secreted from the environment (say another cell that is not nearby, but is available after ...

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by kolean
Wed Sep 02, 2009 11:08 pm
 
Forum: Cell Biology
Topic: Stem and Progenitor Cell Questions
Replies: 2
Views: 24

Re: Natural selection is proven wrong

... to tell there was something unique about them but would be expected to still love them just the same, or more. There is a small amount of random replication error that is always present that produces slow change. But in this case there must be a fast response to adapt a relatively large sudden ...

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by GaryGaulin
Tue Sep 01, 2009 3:00 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16275

Re: chromosome 2 replication.

Ya you are right, there could definetely be a problem in chromosome2 due to presence of 2 centromeres. However the inactivity of one of the centromeres in the anaphase acts fortunate for us.

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by stephenmorphey
Fri Aug 21, 2009 6:54 am
 
Forum: Genetics
Topic: chromosome 2 replication.
Replies: 4
Views: 151

multiple initiation sites.

i think the question was referring to origins of replication, because in EK cells there are multiple vs only one in bacteria

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by MrMistery
Thu Aug 20, 2009 9:22 pm
 
Forum: Cell Biology
Topic: multiple initiation sites.
Replies: 5
Views: 95

multiple initiation sites.

... or epigenetics fall into this category yet :) And could you please specify as to how multiple initiation sites actually enhance the accuracy of replication? As far as I know, intitiation sites are realted to gene expression (i.e. the starting point of transcription where data is being copied ...

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by biohazard
Thu Aug 20, 2009 7:11 am
 
Forum: Cell Biology
Topic: multiple initiation sites.
Replies: 5
Views: 95
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