Which of the following PGR is present in coconut milk which is used in tissue culture?
1. Cytokinin
2. Auxin
3. Gibberellin
4. Ethylene
You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots?
1. IAA and gibberellin
2. Auxin and cytokinin
3. Auxin and abscisic acid
4. Gibberellin & abscisic acid
Coconut milk factor is:
1. An auxin
2. A gibberellin
3. Abscisic acid
4. Cytokinin
Coconut water contains
1. ABA
2. auxin
3. cytokinin
4. gibberellin
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. | Ethylene | I. | Increase length of stem |
B. | Cytokinins | II. | Promotion of senescence and abscission |
C. | ABA | III. | Delaying leaf senescence |
D. | Gibberellins | IV. | Inhibition of seed germination |
The effect of apical dominance can be overcome by which of the following hormone?
1. IAA
2. Ethylene
3. Gibberellin
4. Cytokinin
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 |
List I | List II | ||
A. | Abscisic acid | I. | Promotes female flowers in cucumber |
B. | Ethylene | II. | Helps seeds to withstand desiccation |
C. | Gibberellin | III. | Helps in nutrient mobilisation |
D. | Cytokinin | IV. | Promotes bolting in beet cabbage etc |
A. | All GAs are acidic in nature. |
B. | Auxins are antagonists to GAs. |
C. | Zeatin was isolated from coconut milk. |
D. | Ethylene induces flowering in Mango. |
E. | Abscisic acid induces parthenocarpy. |
1. | A,C,D | 2. | B,E |
3. | A,B,C | 4. | B,D,E |