Fusianus Centrialis!

Debate and discussion of any biological questions not pertaining to a particular topic.

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DUmp!
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Fusianus Centrialis!

Post by DUmp! » Mon May 08, 2006 4:25 pm

How does centrifugation help us study DNA?
:(
It will just through all DNA outwards. :oops:
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nugget
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Post by nugget » Tue May 09, 2006 11:42 am

hello to you too,

through? do you mean throw??

no it wont actually. im not sure if i understoood your question properly, but if you have a sample of blood from which you want to collect the dna from you have to go through an accurate process of extracting the dna.
If you look into the process of DNA extraction, its just a part of the filtering process of the dna from other cellular materials and proteins.

does that answer your question?? hope so

:-)
Last edited by nugget on Wed May 10, 2006 1:29 am, edited 1 time in total.

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canalon
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Post by canalon » Tue May 09, 2006 2:54 pm

Yep centrifugation is used in many applications in molecular biology. From cell/bacteria wash to separation of molecules of different densities like in the Meselson-Stahl experiment. And also very important, as a good way to be sure that all your reageants are at the bottom of your tube in most molecular biology experiments :D

So it is hard to answer completely to your rather vague question.
Patrick

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any proof. (Ashley Montague)

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Post by DUmp! » Wed May 10, 2006 3:17 pm

sorry i mean throw>
Thanks for those infobits both of you.
My question is rather what does centrifugation actually do to DNA or anything else.
Excuse if this is very simple q, :oops:





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canalon
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Post by canalon » Wed May 10, 2006 3:53 pm

nothing. DNA is not transformed by centrifugation.
Centrifugation is just a way to separate molecule either by their weight or by their density (centrifugation in a density gradient). And DNA is not thrown out because of the bottom of the tube, that hopefully don't break, keep its content in.
Patrick

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Post by DUmp! » Thu May 18, 2006 6:00 pm

THANKS Patrick.
for i didn't get any google results for this.
May i know some thing more abt the physics of the process...or any web site/
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