Q. No.Consider the given two statements:
I. The term ‘embryophytes’ is an appropriate synonym for plants.
II. The occurrence of a multicellular, matrotrophic embryo in plants from bryophytes through angiosperms.
1. Both I and II are correct and II explains I
2. Both I and II are incorrect but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
II. The occurrence of a multicellular, matrotrophic embryo in plants from bryophytes through angiosperms.
2. Both I and II are incorrect but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
Consider the two trends in evolution of plants:
| I. | A reduction of vascular tissues occurs from gymnosperms and woody dicots to herbaceous dicots to monocots |
| II. | The gametophytes of vascular plants have become smaller and simpler |
| 1. | Both I and II are correct |
| 2. | Only I is correct |
| 3. | Only II is correct |
| 4. | Both I and II are incorrect |
The seed of a gymnosperm is a complex structure with three generations locked up in it. Identify the correct match:
| I. | Female gametophyte: Old generation |
| II. | Seed coat: Present generation |
| III. | Embryo: Future generation |
| 1. | Only I |
| 2. | Only III |
| 3. | Only I and II |
| 4. | Only II and III |
The description of which of the following features of reproductive structures of Funaria is correct?
| I. | Reproductive organs are borne on separate branches of the same thallus |
| II. | Antheridia are club shaped |
| III. | Archegonia are flask shaped |
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
All the following regarding Dryopteris are true except:
| 1. | Involute vernation |
| 2. | Obliquely growing subterranean rhizome |
| 3. | Large compound leaves called fronds |
| 4. | Hair like ramenta covering petiole |
In Cycas:
| I. | Micro sporophylls bear two elongated sac like structures at the base on the ventral side called pollen sacs. |
| II. | Pollen grains are winged. |
| III. | Megasporophylls are compact when young but spread apart when mature. |
| IV. | Each megasporophyll has (a) bract scale and (b) ovuliferous scale which bears 2 ovules on the ventral side. |
| 1. | Only I, II and III are correct |
| 2. | Only I, III and IV are correct |
| 3. | Only II, III and IV are correct |
| 4. | I, II III and IV are correct |
Seeds make their appearance for the first time in gymnosperms. All the following factors are responsible for its development except:
| 1. | Heterospory and differentiation of sporophylls and sporangia |
| 2. | Retention of megaspore within the megasporangium |
| 3. | Female gametophyte devoid of any integument |
| 4. | Development of young sporophyte within tissue of the megasporangium |
All the following regarding resemblances of Gnetum with angiosperms are true except:
1. Presence of true vessels in secondary wood
2. Only one integument surrounding the ovule
3. Perianth in both male and female flowers
4. Absence of archegonia
The diagram below shows:
| 1. | Female strobilus of Cycas |
| 2. | Male strobilus of Cycas |
| 3. | Female strobilus of Pinus |
| 4. | Male strobilus of Pinus |
Consider the given statements:
| I. | A homosporous life history occurs in nearly all bryophytes and in most pteridophytes. |
| II. | A heterosporous life history occurs in some pteridophytes and in all seed plants. |
| III. | Heterosporous pteridophytes, unlike their homosporous counterparts, lack archegonia, antheridia, and motile flagellate sperm. |
| IV. | The seed plants completely lack antheridia. |
The correct statements include:
1. Only I, II and III
2. Only I, II and IV
3. Only II, III and IV
4. I, II, III and IV
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