- 1(current)
Q. No.| List-I | List-II | ||
| (a) | Chlamydomonas | (i) | Moss |
| (b) | Cycas | (ii) | Pteridophyte |
| (c) | Selaginella | (iii) | Alga |
| (d) | Sphagnum | (iv) | Gymnosperm |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (ii) | (iv) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (iii) | (ii) | (i) | (iv) |
| 4. | (ii) | (iii) | (i) | (iv) |
| Assertion (A): | In gymnosperms, the pollen grains are released from the microsporangium and carried by air currents. |
| Reason (R): | Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed. |
| 1. | (A) is False, (R) is True. |
| 2. | Both (A) and (R) are True and (R) correctly explains (A). |
| 3. | Both (A) and (R) are True and (R) does not correctly explain (A). |
| 4. | (A) is True, (R) is False. |
Which of the following statements is incorrect about gymnosperms?
1. They are heterosporous
2. Male and female gametophytes are free-living
3. Most of them have narrow leaves with thick cuticles
4. Their seeds are not covered
Pinus seeds cannot germinate and establish without fungal association. This is because:
1. its seeds contain inhibitors that prevent germination.
2. its embryo is immature.
3. it has an obligate association with mycorrhizae.
4. it has a very hard seed coat.
Which of the following statement is correct?
| 1. | Ovules are not enclosed by the ovary wall in gymnosperms. |
| 2. | Selaginella is heterosporous, while Salvinia is homosporous. |
| 3. | Horsetails are gymnosperms. |
| 4. | Stems are usually unbranched in both Cycas and Cedrus. |
Conifers are adapted to tolerate extreme environmental conditions because of?
1. broad hardy leaves
2. superficial stomata
3. thick cuticle
4. the presence of vessels
In which of the following gametophyte is not independent free-living?
| 1. | Funaria | 2. | Marchantia |
| 3. | Pteris | 4. | Pinus |
| 1. | Cycas | 2. | Equisetum |
| 3. | Psilotum | 4. | Pinus |
- 1(current)
Q. No.
© 2026 GoodEd Technologies Pvt. Ltd.