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Replication dna

replication, DNA

A wondrous complex process whereby the ( parent ) strands of dNA in the double helix are separated and each one is copied to produce a new ( daughter ) strand. This process is said to be semi-conservative since one of each parent strand is conserrved and remains intact after replication has taken place.


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Re: Chromatin

Before replication there were 23 pairs of molecules, 23 of maternal origin and 23 of paternal origin, ... 46 centromeres total. After replication there are still 46 centromeres, but the mass of DNA and number of chromatids have doubled (and so you get the X-shaped chromosomes you typically ...

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by jonmoulton
Thu Sep 04, 2014 3:04 pm
 
Forum: Genetics
Topic: Chromatin
Replies: 2
Views: 408

Chromosome Differences

I thing handling of large DNA molecule or chomosome may be difficult during replication or mitosis, so small DNA molecule selected during the course of evolution. We can see chromosomes ...

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by josem
Wed Sep 03, 2014 8:47 pm
 
Forum: Genetics
Topic: Chromosome Differences
Replies: 5
Views: 509

Re: Totipotent Stem Cell From Molecular Components

... it from the protein synthesis enzymes using a centrifuge. As far as the DNA side of things first I do DNA extraction(in this case of my own DNA). ... centrifugation. Next I put it in an incubator with the same DNA replication enzymes as the ones in the cell at human body conditions and ...

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by caters
Fri Aug 01, 2014 1:42 am
 
Forum: Cell Biology
Topic: Totipotent Stem Cell From Molecular Components
Replies: 2
Views: 2865

Re: Is DNA living or non-living thing?? get the answer here

... לה אנרגיה. אכול או היאכל. Evolution Derives From Gravity The quantity of mass in the universe is constant since the universe started its last self-replication, since its last singularity, its last pre-big bang re-birth conception. All Science Disciplines derive from, start and end, evolve and survive ...

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by Dov Henis
Fri Jul 04, 2014 8:00 am
 
Forum: Molecular Biology
Topic: Is DNA living or non-living thing?? get the answer here
Replies: 24
Views: 55140

No "beginning-replication problem" on leading strand?

... the extreme end have a RNA primer to make the last Okazaki fragment, and after the removal of this primer it needs to somehow be replaced with DNA. I have the latest version of Molecular Biology of the Gene book (by Watson) in front of me and that's the only explanation provided. However, what ...

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by poobear
Fri Apr 11, 2014 9:40 pm
 
Forum: Molecular Biology
Topic: No "beginning-replication problem" on leading strand?
Replies: 1
Views: 747
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