- 1(current)
Q. No.What is true about the given figure?
| 1. | The plant concerned is Chara, A is Oogonium and B is Antheridium |
| 2. | The plant concerned is Chara, B is Oogonium and A is Antheridium |
| 3. | The plant concerned is Marchantia, A is Oogonium and B is Antheridium |
| 4. | The plant concerned is Marchantia, B is Oogonium and A is Antheridium |
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| 1. | A is the female thallus of Marchantia and B is the male thallus of Marchantia |
| 2. | A is the male thallus of Marchantia and B is the female thallus of Marchantia |
| 3. | A is the female thallus of Chara and B is the male thallus of Chara |
| 4. | A is the male thallus of Chara and B is the female thallus of Chara |
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Which of the following is the most critical event of sexual reproduction?
| 1. | Gametogenesis | 2. | Gamete Transfer |
| 3. | Fertilization | 4. | Embryogenesis |
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| Statement I: | In organisms with external fertilisation, zygote is formed in an external medium. [usually water] |
| Statement II: | In organisms with internal fertilisation, zygote is formed inside the body of the organism. |
| 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. |
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| Assertion (A): | The chances of survival of young ones are greater in viviparous organisms. |
| Reason (R): | In such animals, fertilised eggs covered by a hard calcareous shell are laid in a safe place in the environment. |
| 1. | (A) is true but (R) is false. |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 4. | (A) is false but (R) is true. |
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I: The zygote develops into the embryo.
II. The ovules develop into the seed.
III. The ovary develops into the fruit.
IV. A thick protective fruit wall called pericarp develops.
1. Only I, II and IV are correct
2. Only II, III and IV are correct
3. Only I, II and III are correct
4. I, II, III and IV are correct
- 1(current)
Q. No.
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