| A. | Microspore tetrads |
| B. | Sporogenous tissue |
| C. | Pollen grains |
| D. | Pollen mother cells |
| 1. | D, A, C, B | 2. | B, D, C, A |
| 3. | B, D. A, C | 4. | A, D, C, B |
| Assertion (A): | Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. |
| Reason (R): | The presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells. |
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |