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NEET2014ZoologyBiotechnology - Principles and ProcessesActual

The vector for T-DNA is

Options

  1. AThermus aquaticus
  2. BSalmonella typhimurium
  3. CAgrobacterium tumefaciens
  4. DEscherichia coli

Correct answer

C. Agrobacterium tumefaciens

Step-by-step solution

- Plant transformation mediated by the soil pathogen, Agrobacterium tumefaciens has become the most used method for plant transformation. - It naturally infects the wound sites in dicots causing the crown gall disease. It is capable to transfer T-DNA of the Tumour inducing (Ti) plasmid into the nucleus of infected cells. - It will then integrate into the host genome and is transcribed, causing the crown gall disease. - Thus, the correct answer is option C.

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