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Restriction endonucleases are enzymes which

Options

  1. Amake cuts at specific positions within the DNA molecule
  2. Brecognize a specific nucleotide sequence for binding of DNA ligase
  3. Crestrict the action of the enzyme DNA polymerase
  4. Dremove nucleotides from the ends of the DNA molecule

Correct answer

A. make cuts at specific positions within the DNA molecule

Step-by-step solution

Restriction endonuclease recognizes a specific DNA base sequence (recognition sequence or recognition site, restriction sequence or restriction site) and cleaves both the strands of DNA at or near that site. The enzyme cuts the DNA, generating restriction fragments with overhanging ends or blunt ends.

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