Assertion(A): 2, 4-D is artificial auxin.
Reason(R): 2, 4-D is a weedicide and quickly kills mature monocots.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. (A) is true but the (R) is false.
4. Both (A) and (R) are false statements.
Subtopic:  Auxin Function |
 79%
From NCERT
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Assertion(A): 2,4-D is widely used as an herbicide.
Reason(R): It is used to kill mature monocotyledonous plants.

1. Both (A) & (R) are true and (R) is the correct explanation of (A)
2. Both (A) & (R) are true but (R) is not the correct explanation of (A)
3. (A) is a true statement but (R) is false.
4. Both (A) and (R) are false statements.
Subtopic:  Auxin Function |
 83%
From NCERT
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Match the Following:

Column I

Column II

A. IAA

B. ABA

C. Ethylene

D. GA

E. Cytokinin

1. Herring sperm DNA.

2. Bolting

3. Stomatal closure

4. Weed-free lawns

5. Ripening of fruits.

Codes
 

Options:  A   B   C   D   E 
1. 4 3 5 2 1
2. 5 3 4 2 1
3. 4 1 4 3 2
4. 5 3 2 4

 

Subtopic:  Auxin Function | Gibberellin | Cytokinin | Ethylene | Abscisic Acid |
 93%
From NCERT
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Match List I with List II
List I List II
A. Indole Acetic Acid I. Increase length of grapes stalks
B. Zeatin II. Hastens fruit ripening in tomatoes
C. Gibberellic acid III. Overcome apical dominance
D. Ethephon IV. Rooting in stem cuttings

Choose the correct answer from the option given below:
1. A-II, B-I, C-IV, D-III
2. A-IV, B-II, C-I, D-III
3. A-IV, B-III, C-I, D-II
4. A-III, B-IV, C-II, D-I




 
Subtopic:  Auxin Function | Gibberellin | Ethylene |
 89%
From NCERT
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NEET 2026 - Target Batch - Vital
Hints
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NEET 2026 - Target Batch - Vital