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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 so called primers do contain DNA and RNA base. DNA has the base thymine while RNA has uracil as its base. DNA is double stranded whereas RNA is a single stranded. DNA contains the pentose sugar deoxyribose while RNA contains the pentose sugar ribose. DNA polymerase will be continuous till the work is finally done wherein RNA polymerases will continue but eventually may break in the event it will reach a âstopâ cycle.