Question
Differentiate Between Cross Pollination and Self Pollination:
| Self-pollination | Cross-pollination |
| It occurs between anther and stigma of the same plant. | It occurs between anther and stigma of different plants. |
| External agent is not required. | External agent is required. |
| Anther and carpel mature at the same time. | Anther and carpel mature at different times. |
| This pol Ii nation preserves the parental characters. | This pollination does not preserve the parental characters. |
| Pollen grains are produced in less quantity. | Pollen grains are produced in large Quantity |
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| Column I (Activity) | Column II (Organisation) |
| (i) To extend relief to victims of earthquake. (ii) To lay pharmaceutical standards for Important drugs. (iii) Arranging ambulance in emergencies. (iv) To suggest quarantine measures. (v) Training of midwives. (vi) Procuring and supplying blood for transfusion. | (A) Red Cross (B) WHO |

| Column A | Column B |
| (a) Generative nucleus | (i) Pollen tube |
| (b) Germ pore | (ii) Endosperm nucleus |
| (c)Exine | (iii)Testa |
| (d) Secondary nucleus | (iv) Fertilization |
| (e) Integument | (v) Male nuclei |
| (f) Egg nucleus | (vi) Rough |