| 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 |
| 1. | Central cell | 2. | Primary endosperm cell |
| 3. | Zygote | 4. | Synergid |
| 1. | Pea | 2. | Wheat |
| 3. | Maize | 4. | Barley |
| 1. | 72 | 2. | 18 |
| 3. | 36 | 4. | 54 |
| Assertion (A): | A typical unfertilised, angiosperm embryo sac at maturity is 8-nucleate and 7-celled. |
| Reason (R): | The egg apparatus has 2 polar nuclei. |
| 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) |
| Assertion (A): | Both wind and water pollinated flowers are not very colourful and do not produce nectar. |
| Reason (R): | The flowers produce enormous amount of pollen grains in wind and water pollinated flowers. |
| 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). |