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Historical Contributions Discoveries A. 1963 1. Restriction endonuclease Hind II characterized B. 1968 2. Restriction enzymes isolated C. 1972 3. First recombinant DNA molecule constructed D. 1977 4. DNA sequencing method developed

Options

  1. AA - 2, B - 3, C - 1, D - 4
  2. BA - 1, B - 2, C - 4, D - 3
  3. CA - 2, B - 1, C - 3, D - 4
  4. DA - 1, B - 2, C - 4, D - 3

Correct answer

C. A - 2, B - 1, C - 3, D - 4

Step-by-step solution

In 1963, restriction enzymes were isolated, in 1968 Hind II was characterized, in 1972 the first recombinant DNA molecule was constructed, and in 1977 the DNA sequencing method was developed.

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