Which one of the following growth regulators is known as stress hormone ?

1. Abscissic acid

2. Ethylene

3. GA3

4. Indole acetic acid

Subtopic:  Abscisic Acid |
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Which one of the following generally acts as an antagonist to gibberellins ?
1.  Ethylene
2.  ABA
3.  IAA
4.  Zeatin

Subtopic:  Abscisic Acid |
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which one of the following acids is a derivative of carotenoids?

1. Indole-butyric acid

2. Indole-3-acetic acid

3. Gibberellic acid

4. Abscisic acid`

Subtopic:  Abscisic Acid |
To view explanation, please take trial in the course below.
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To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
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Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in

1.  vessels and tracheid differentiation

2.  leaf abscission

3.  annual plants

4.  floral parts.

Subtopic:  Auxin Function | Cytokinin | Ethylene | Abscisic Acid |
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Please attempt this question first.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology