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. |
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 | 4 |
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. |
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 |
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 |
List-I | List-II | ||
(A) | Auxin | (I) | Promotes female flower formation in cucumber |
(B) | Gibberellin | (II) | Overcoming apical dominance |
(C) | Cytokinin | (III) | Increase in the length of grape stalks |
(D) | Ethylene | (IV) | Promotes flowering in pineapple |
Options: | (A) | (B) | (C) | (D) |
1. | II | I | IV | III |
2. | IV | III | II | I |
3. | I | III | IV | II |
4. | III | II | I | IV |