Q177 / 180 · JIPMER 2015 · Zoology

In 1944, Avery, McCarty and MacLeod isolated a substance from heat killed virulent form of bacteria and added to non-virulent form of bacteria which changed the non-virulent to virulent from this substance can be distroyed by

  • Correct answer
    A
    DNAase
  • B
    protease
  • C
    lipase
  • D
    amylase

Solution

Avery, MacLeod and McCarty carried out an experiment from which they reported that DNA is a substance that causes bacterial transformation from non-virulent to virulent bacteria, but DNAase acts as a waste management endonucleases responsible for DNA fragmentation.

Hence, the correct answer is option: 'A'.

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