During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out : (1) RNA (2) DNA (3) Histones (4) Polysaccharides
During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out : (1) RNA (2) DNA (3) Histones (4) Polysaccharides

Correct option:(2)
Solution:

  • Various enzymes like protease, RNase, etc. are added to break down substances like proteins, RNA, etc.
  •  All these substances are broken down, DNA is left which is precipitated out by adding chilled ethanol.
  • Histones are special proteins that help condense DNA in a cell.