| Assertion (A): | Fertilisation takes place in the ampullary region of the oviduct. |
| Reason (R): | Ampulla is the wider part of the oviduct. |
| 1. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 2. | (A) is True but (R) is False. |
| 3. | Both (A) and (R) are True and (R) correctly explains (A). |
| 4. | (A) is False but (R) is True. |
| a: | Internal fertilisation takes place in mammals |
| b: | Colostrum contains antibodies and nutrients |
| c: | Polyspermy in mammals is prevented by corona radiata |
| d: | In the human female, implantation occurs almost seven days after fertilisation |