Match the following :
| A. | IAA | i. | Herring sperm DNA |
| B. | ABA | ii. | Bolting |
| C. | Ethylene | iii. | Stomatal closure |
| D. | GA | iv. | Weed-free lawns |
| E. | Cytokinins | v. | Ripening of fruits |
Options:
| A | B | C | D | E | |
| 1. | iv | iii | v | ii | i |
| 2. | v | iii | iv | ii | i |
| 3. | iv | i | v | iii | ii |
| 4. | v | iii | ii | i | iv |
| 1. | induces growth of shoot buds |
| 2. | induces root formation |
| 3. | leads to death of cells in callus |
| 4. | leads to a decrease in cell division |
| 1. | Cytokinins were discovered as kinetin (a modified form of adenine, a purine) from the autoclaved herring sperm DNA. |
| 2. | Kinetin occurs naturally in plants. |
| 3. | Natural cytokinins are synthesised in regions where rapid cell division occurs. |
| 4. | Cytokinins help overcome the apical dominance. |
| Statement I: | Kinetin occurs naturally in plants. |
| Statement II: | Zeatin does not occur naturally in plants. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |