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Given below are two statements: Statement I : Restriction endonucleases function by inspecting the length of a DNA sequence to find and bind to a specific recognition sequence. Statement II : These enzymes cut the strand of DNA a little away from the centre of the palindrome sites, but between the same two bases on the opposite strands. In the light of the above statements, choose the most appropriate answer from the

Options

  1. ABoth statement I and statement II are correct
  2. BBoth statement I and statement II are incorrect
  3. CStatement I is correct but statement II is incorrect
  4. DStatement I is incorrect but statement II is correct

Correct answer

A. Both statement I and statement II are correct

Step-by-step solution

Refer: NCERT | Class 12 | Page: 166 - 167 | Paragraph: 2 - 2 Statement I is correct. Each restriction endonuclease functions by inspecting the length of a DNA sequence. Once it finds its specific recognition sequence, it binds to the DNA and cuts each of the two strands of the double helix at specific points in their sugar-phosphate backbones. Statement II is correct. Restriction enzymes cut the strand of DNA a little away from the centre of the palindrome sites, but between the same two bases on the opposite stran

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