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Match List-I with List-II. List-I List-II A. Exonuclease I. Makes cuts at specific positions within the DNA B. Endonuclease II. Joins DNA fragments C. Restriction Endonuclease III. Removes nucleotides from the ends of the DNA D. DNA Ligase IV. Cuts DNA a little away from the centre of palindromic sites Choose the correct answer from the options given below:

Options

  1. AA-I, B-III, C-IV, D-II
  2. BA-III, B-IV, C-I, D-II
  3. CA-IV, B-I, C-III, D-II
  4. DA-III, B-I, C-IV, D-II

Correct answer

D. A-III, B-I, C-IV, D-II

Step-by-step solution

Exonucleases remove nucleotides from the ends of the DNA, whereas endonucleases make cuts at specific positions within the DNA. Restriction endonucleases are a specific type of endonuclease that recognise specific palindromic nucleotide sequences and cut the DNA helix a little away from the centre of the palindromic sites, but between the same two bases on the opposite strands. DNA ligase is an enzyme that facilitates the joining of DNA strands together by catalysing the formation of a phosphodiester bond. Therefor

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