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NEET 2026
Exam
NEET
Year
2026
Subject
Biology
Chapter
Chapter

NEET 2026 · Biology · Chapter

During the isolation of pure DNA from a biological sample, other...

During the isolation of pure DNA from a biological sample, other macromolecules must be removed. Which of the following pairs of enzymes is used to degrade RNA and proteins, respectively, in this purification process?

Options

  1. ADeoxyribonuclease and Protease
  2. BRibonuclease and Protease
  3. CRibonuclease and Cellulase
  4. DRestriction endonuclease and Ligase

Correct answer

B. Ribonuclease and Protease

Step-by-step solution

During the isolation of pure DNA, it is necessary to remove other macromolecules such as RNA and proteins from the biological sample.

RNA is degraded by the enzyme Ribonuclease (RNase).

Proteins are degraded by the enzyme Protease.

Therefore, the pair of enzymes used to degrade RNA and proteins respectively is Ribonuclease and Protease.

Answer: Ribonuclease and Protease
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