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What type of bacteria were the restriction enzymes isolated from?

Options

  1. AEscherichia coli
  2. BSalmonella typhimurium
  3. COver 2030 strains of bacteria
  4. DBoth A) and B)

Correct answer

A. Escherichia coli

Step-by-step solution

In the year 1963, the two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated. One of these added methyl groups to DNA, while the other cut DNA. The later was called restriction endonuclease

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