NEET Biology question

During the process of isolation of DNA, chilled ethanol is added to: [NEET (Karnataka) 2013]

(A)Precipitate DNACorrect
(B)Break open the cell to release DNA
(C)Facilitate the action of restriction enzymes
(D)Remove proteins such as histones

Answer: (A)

Solution

Breaking open the cell is achieved earlier using lysing enzymes, restriction digestion and protein removal are separate steps using enzymes such as protease, whereas chilled

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Question ID VK-125195