The laboratory technique involving the extraction of DNA from a cell in a pure form.

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How much salt [NaCl] is too much in DNA precipitation?

In DNA extractions, how much is too much salt in a CTAB extraction buffer? Protocols hover around 2.5 molar; if you go over this (e.g. 25 molar), will you saturate your solution, and precipitate the ...
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Origin of the 260/280 ratio?

This is not a duplicate of all the other 260/280 ratio questions, I already know that DNA is supposed to be 1.8 and RNA is supposed to be 2.0. However, this might be more appropriate for chemistry, ...
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What are the roles of guanidine-HCl and ethanol in binding of DNA to silica?

I'm trying to understand how exactly the binding to silica gel (in kits) step works and I cannot find any papers which provide an explanation of the physics or chemistry; especially on the way that ...
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Which kit provides the highest yield and purity of extracted DNA from FFPE tissue samples?

I'm looking to extract DNA for sequencing from FFPE (Formalin fixed paraffin-embedded) tissue samples. I'd like to use a commercial kit that provides a high yield of good quality DNA.
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method for DNA extraction for human mucus(nose) or earwax?

What is a simple method for extracting human DNA from nose mucus or earwax? I tried googling for methods for DNA extraction for human nose mucus or earwax and couldn't find any. I assumed that if one ...
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Can these “Promega Wizard genomic DNA Purification kit” be used for samples not stated directly?

I am not sure if this is a duplicate of my previous question, it is somewhat related, so sorry if I misunderstood. The question is, can i use the above kit for samples like hair, fingernails, etc? ...