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easyMCQNEET 20232026Biology
1 mark

During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:

  1. A
    RNA
  2. B
    DNA
  3. C
    Histones
  4. D
    Polysaccharides

Solution & Step-by-step Explanation

During the isolation of genetic material, DNA is released from the cell. After treatment with various enzymes to remove RNA and proteins, chilled ethanol is added. DNA is insoluble in ethanol and thus precipitates out as a collection of fine threads.

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During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:
A
RNA
B
DNA
C
Histones
D
Polysaccharides

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biotechnologydna isolation

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