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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.
Since PCR is, basically, replication of DNA in a test-tube, all the usual ingredients needed for DNA replication are required: A template. Primers. DNA polymerase. dNTPs (deoxynucleoside triphosphates used to make DNA). The template is the DNA that contains the target sequence you want to amplify. The primers are synthetic DNA molecules whose sequence matches a region flanking the target you are trying to amplify.