- 1(current)
Q. No.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 |
Subtopic: Â Auxin Function |Â Gibberellin |Â Cytokinin |Â Ethylene |Â Abscisic Acid |
 94%
Level 1: 80%+
Hints
Consider the following statements regarding a certain plant growth regulator:
| I. | They are a class of plant growth substances that promote cell division. |
| II. | They are primarily involved in cell growth, differentiation, and other physiological processes. |
| III. | Their effects were first discovered through the use of coconut milk by Folke Skoog. |
This plant hormone must be:
1. Auxin
2. Cytokinin
3. Giberrellin
4. Ethylene
Subtopic: Â Cytokinin |
 91%
Level 1: 80%+
Hints
Read the following statements and choose the correct option.
| Statement A: | Cytokinin isolated from unripe maize grains is known as zeatin. |
| Statement B: | Cytokinin delays senescence. |
| 1. | Only A is correct |
| 2. | Only B is correct |
| 3. | Both A & B are correct |
| 4. | Both A & B are incorrect |
Subtopic: Â Cytokinin |
 64%
Level 2: 60%+
Hints
Read the following statements:
Which of the above statements are correct?
1. (i), (ii) and (iii)
2. (ii) only
3. (iii) and (iv)
4. (i), (ii), (iv) and (v)
| (i) | GA causes increase in length of grape stalks and causes apples to elongate and improve its shape |
| (ii) | GA causes bolting in beet, cabbage and many plants with rosette habit |
| (iii) | Kinetin is a modified cytosine |
| (iv) | Cytokinins are abundant in root apices, developing shoot buds and young fruits |
| (v) | Cytokinins cause lateral shoot growth and adventitious shoot formation |
Which of the above statements are correct?
1. (i), (ii) and (iii)
2. (ii) only
3. (iii) and (iv)
4. (i), (ii), (iv) and (v)
Subtopic: Â Gibberellin |Â Cytokinin |
 88%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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