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easyMCQNEET 20222026Biology
1 mark

Given below are two statements:Statement I: Restriction endonucleases recognise specific sequences to cut DNA known as palindromic nucleotide sequences.Statement II: Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.In the light of the above statements, choose the most appropriate answer from the options given below:

  1. A
    Both Statement I and Statement II are correct
  2. B
    Both Statement I and Statement II are incorrect
  3. C
    Statement I is correct but Statement II is incorrect
  4. D
    Statement I is incorrect but Statement II is correct

Solution & Step-by-step Explanation

Statement I is correct: These enzymes look for specific symmetry in the DNA.Statement II is correct: Most restriction enzymes cut the two strands at slightly different positions (a little away from the center but between the same bases on opposite strands), resulting in single-stranded overhanging ends called sticky ends.

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Given below are two statements:Statement I: Restriction endonucleases recognise specific sequences to cut DNA known as palindromic nucleotide sequences.Statement II: Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.In the light of the above statements, choose the most appropriate answer from the options given below:
A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct

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