Match the following concerning the activity/function and the phytohormone involved:-
(a) | Fruit ripener | (i) | Abscisic acid |
(b) | Herbicide | (ii) | GA 3 |
(c) | Bolting agent | (iii) | 2, 4-D |
(d) | Stress hormone | (iv) | Ethephon |
Select the correct option from following:-
(a) | (b) | (c) | (d) | |
1. | (ii) | (iii) | (iv) | (i) |
2. | (iii) | (iv) | (ii) | (i) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iv) | (ii) | (i) | (iii) |
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 |
List I | List II |
A. Abscisic acid | I. Induce parthenocarpy |
B. Gibberellin | II. Delay senescence |
C. Auxin | III. Regulates dormancy |
D. Ethylene | IV. Promotes root growth |
1. | A - (III); B - (II); C - (I); D - (IV) |
2. | A - (II); B - (I); C - (IV); D - (III) |
3. | A - (III); B - (II); C - (IV); D - (I) |
4. | A - (I); B - (II); C - (III); D - (IV) |
Assertion(A): | ABA is one of the most widely used PGRs in agriculture. |
Reason(R): | Ethylene regulates many physiological processes. |
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 (R) is false. |
4. | (A) is false, but (R) is true. |
Assertion(A): | ABA is called stress hormones. |
Reason(R): | ABA stimulates the opening of the stomata. |
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 (R) is false. |
4. | (A) is false, but (R) is true. |