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NEET2023ZoologyBiotechnology - Principles and ProcessesActual

Thermostable DNA polymerase used in PCR was isolated from :

Options

  1. AAgrobacterium tumifaciens
  2. BBacillus thuringiensis
  3. CThermus aquaticus
  4. DEscherichia coli

Correct answer

C. Thermus aquaticus

Step-by-step solution

Option (3) is the answer, because Thermostable DNA polymerase (Taq polymerase) used in PCR was isolated from a bacterium Thermus aquaticus. Option (1) is not the answer as Agrobacterium tumifaciens is a pathogen of several dicot plants. Option (2) is not the answer as, specific Bt toxin genes were isolated from Bacillus thuringiensis and incorporated into the several crop plants for the development of pest resistant crops. E. Coli was used as a host by Eli lily to produce human insulin.

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