- 1(current)
Q. No.Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tends to be:
| 1. | larger but to have smaller sex organs |
| 2. | larger and to have large sex organs |
| 3. | smaller and to have smaller sex organs |
| 4. | smaller but to have larger sex organs |
Subtopic: Â Pteridophytes: Heterospory |
Level 4: Below 35%
AIPMT - 2011
Hints
Consider the following four statements:
| (A) | The sporophyte in liverworts is more elaborate than that in mosses |
| (B) | Salvinia is heterosporous |
| (C) | The life cycle in all seed-bearing plants is diplontic |
| (D) | In Pinus male and female cones are borne on different trees |
The two wrong statements together are:
1. Statements (A) and (B)
2. Statements (A) and (C)
3. Statements (A) and (D)
4. Statements (B) and (C)
Subtopic: Â Bryophytes (Liverworts) |Â Pteridophytes: Heterospory |Â Examples of Gymnosperms |
 71%
Level 2: 60%+
AIPMT - 2011
Hints
Which one of the following is considered important in the development of seed habit?
| 1. | Dependent sporophyte | 2. | Heterospory |
| 3. | Halplontic life cycle | 4. | Free-living gametophyte |
Subtopic: Â Pteridophytes: Heterospory |
 71%
Level 2: 60%+
AIPMT - 2009
Hints
Subtopic: Â Pteridophytes: Heterospory |Â Pteridophytes |
 92%
Level 1: 80%+
AIPMT - 2008
Hints
Links
Flagellated male gametes are present in all three of which one of the following sets?
1. Anthoceros, Funaria, and Spirogyra
2. Zygnema, Saprolegnia, and Hydrilla
3. Fucus, Marsilea, and Calotropis
4. Riccia, Dryopteris, and Cycas
Subtopic: Â Bryophytes |Â Pteridophytes: Heterospory |Â Gymnosperms: I |Â Gymnosperms |
Level 3: 35%-60%
AIPMT - 2007
Hints
In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result:
| 1. | there is no change in the success rate of fertilization |
| 2. | there is a high degree of sterility |
| 3. | one can conclude that the plant is apomictic |
| 4. | self-fertilization is prevented |
Subtopic: Â Pteridophytes: Heterospory |Â Pteridophytes |
 70%
Level 2: 60%+
AIPMT - 2007
Hints
- 1(current)
Q. No.
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