Question:
Which of the following statement(s) is/are CORRECT about Agrobacterium tumefaciens?
Which of the following statement(s) is/are CORRECT about Agrobacterium tumefaciens?
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Agrobacterium = Ti plasmid + T-DNA transfer → natural genetic engineer of plants.
Updated On: Jan 2, 2026
- It contains tumor inducing plasmid
- It causes crown gall disease in dicotyledonous plants
- It is a Gram-positive soil bacterium
- It is used in generating transgenic plants
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The Correct Option is A, B, D
Solution and Explanation
Agrobacterium tumefaciens is a well-known Gram-negative soil bacterium, so statement (C) is incorrect.
It contains the Ti plasmid (tumor-inducing plasmid), which enables the bacterium to transfer a segment of DNA (T-DNA) into plant cells. This makes statement (A) correct.
The insertion of T-DNA into plant genomes leads to uncontrolled cell proliferation, causing crown gall disease, especially in dicot plants, making statement (B) correct.
This natural DNA transfer mechanism is exploited in biotechnology to create genetically modified or transgenic plants, making statement (D) correct.
Thus, the correct statements are (A), (B), and (D).
It contains the Ti plasmid (tumor-inducing plasmid), which enables the bacterium to transfer a segment of DNA (T-DNA) into plant cells. This makes statement (A) correct.
The insertion of T-DNA into plant genomes leads to uncontrolled cell proliferation, causing crown gall disease, especially in dicot plants, making statement (B) correct.
This natural DNA transfer mechanism is exploited in biotechnology to create genetically modified or transgenic plants, making statement (D) correct.
Thus, the correct statements are (A), (B), and (D).
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