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Ethanol precipitation is a method used to purify and/or concentrate RNA, DNA and polysaccharides such as pectin and xyloglucan from aqueous solutions by adding ethanol as an antisolvent.Contents.thanol precipitation is a method used to purify and/or concentrate RNA, DNA and polysaccharides such as pectin and xyloglucan from aqueous solutions by adding ethanol as an antisolvent. Contents.
The mixture contains the DNA which is to be amplified, the enzyme DNA polymerase, small primer sequences of DNA and a good supply of the four nucleotide bases A,T,C and G. The vial is placed in a PCR machine.tage 1 The reactants are mixed together in a PCR vial. The mixture contains the DNA which is to be amplified, the enzyme DNA polymerase, small primer sequences of DNA and a good supply of the four nucleotide bases A,T,C and G. The vial is placed in a PCR machine. Stage 2.