Home Biology Biotechnology and Its Application Previous Year Questions The introduction of t-DNA into plants involv…
Biology Biotechnology and Its Application Previous Year Questions Single Correct MCQ
Published on: August 13, 2026

The introduction of t-DNA into plants involves

A
Altering the pH of soil, then heat-shocking the plants.
B
Exposing the plants to cold for a brief period.
C
Allowing the plant roots to stand in water.
D
Infection of the plant by Agrobacterium tumefaciens.

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The correct answer is:
D

Agrobacterium tumefaciens naturally transfers its T-DNA (Transfer DNA) from the Ti plasmid into plant cells, making it a useful vector in plant genetic engineering.

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