Assertion: | 2, 4-D is artificial auxin. |
Reason: | 2, 4-D is a weedicide and quickly kills mature monocots. |
1. | Both assertion and reason are true and the reason is the correct explanation of the assertion. |
2. | Both assertion and reason are true but the reason is not the correct explanation of the assertion. |
3. | Assertion is true but the reason is false. |
4. | Both assertion and reason are false statements. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA: 2,4-D is widely used as an herbicide.
R: It is used to kill mature monocotyledonous plants.
1. | If both Assertion & Reason are true and the reason is the correct explanation of the assertion. |
2. | If both Assertion & Reason are true but the reason is not the correct explanation of the assertion. |
3. | If Assertion is a true statement but the reason is false. |
4. | If both Assertion and Reason are false statements. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch 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 | 4 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyList 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 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology