NEET Previous Year Question

The introduction of T-DNA into plants involves :

Topic: NEET PYQ

Answer: B. Full step-by-step solution below.

  1. AAllowing the plant roots to stand in water
  2. BInfection of the plant by Agrobacterium tumefaciens
  3. CAltering the pH of the soil, then heat shocking the plants
  4. DExposing the plants to cold for a brief period

Correct answer: B

Solution

(b) The transfer of T-DNA into plant cells occurs through infection by the bacterium Agrobacterium tumefaciens, which naturally delivers its T-DNA into the plant genome for genetic modification.

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