Question:
Agrobacterium transfers the T-DNA into plant cells which contains genes for
Agrobacterium transfers the T-DNA into plant cells which contains genes for
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T-DNA genes:
- Hormones (auxin, cytokinin) and Opines.
- Virulence genes are on the Ti plasmid (not in T-DNA).
- Vir genes help in T-DNA transfer.
- Hormones (auxin, cytokinin) and Opines.
- Virulence genes are on the Ti plasmid (not in T-DNA).
- Vir genes help in T-DNA transfer.
Updated On: Sep 1, 2026
- Virulence and hormones
- Virulence and CDK
- Opines and Virulence
- Hormones and Opines
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of Agrobacterium tumefaciens and T-DNA.
Step 2: Detailed Explanation:
The T-DNA transferred by Agrobacterium contains genes for:
- Hormones: Auxin and cytokinin (cause tumor growth).
- Opines: Opine synthesis genes (provide nutrients for bacteria).
Virulence genes are on the Ti plasmid but NOT transferred as part of T-DNA.
Thus, T-DNA contains genes for hormones and opines.
Option (D) is correct.
Step 3: Final Answer:
Thus, T-DNA contains genes for hormones and opines, which corresponds to option (D).
[0.5cm]
This question tests knowledge of Agrobacterium tumefaciens and T-DNA.
Step 2: Detailed Explanation:
The T-DNA transferred by Agrobacterium contains genes for:
- Hormones: Auxin and cytokinin (cause tumor growth).
- Opines: Opine synthesis genes (provide nutrients for bacteria).
Virulence genes are on the Ti plasmid but NOT transferred as part of T-DNA.
Thus, T-DNA contains genes for hormones and opines.
Option (D) is correct.
Step 3: Final Answer:
Thus, T-DNA contains genes for hormones and opines, which corresponds to option (D).
[0.5cm]
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