Biotechnology
GATE BT Plants PYQs
Build your understanding with focused practice from past exam papers.
How to practice Plants
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 21. Imported answers require independent review unless marked reviewed.
Question 48
Open questionBTMCQ2 marksNeeds review
Correctly match the herbicide with its mode of development of resistance in plants.
Herbicide | Mode of development of resistance |
|---|---|
P. Imidazolinones | 1. Transformation of bacterial nitrilase gene |
Q. Bromoxynil | 2. Transformation of resistant version of acetolactate synthetase |
R. Glufosinate | 3. Transformation of tfdA gene from Alcaligenes, which encodes a dioxygenase |
| 4. Transformation of bar gene from Streptomyces hygroscopicus which encodes phosphinothricin acetyltransferase |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionBTMSQ2 marksNeeds review
Which of the following plant-based secondary metabolites belong(s) to the class of alkaloids?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
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Which of the following is/are considered as biotic elicitor(s) in plant cell culture?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 49
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Which of the following is/are synthetic auxin(s) that does/do NOT occur naturally?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 29
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Which one of the following plant growth regulators facilitate adventitious root formation?
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Which of the following is(are) plant protoplast fusogenic agent(s)?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 44
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Direct DNA transfer method(s) used for plant genetic engineering is(are)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 53
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Introduction of foreign genes into plant cells can be carried out using
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 31
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Which of the following combinations of plant hormones and their associated function are CORRECT?
Hormone Function
P. Abscisic acid Breaks seed dormancy
Q. Auxin Induces cell division
R. Ethylene Stimulates ripening of fruits
S. Gibberellin Promotes seed dormancy
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 35
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Which of the following statement(s) is/are CORRECT about Agrobacterium tumefaciens?
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