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Q. No.Which one of the following shows isogamy with non-flagellated gametes?
1. Sargassum
2. Ectocarpus
3. Ulothrix
4. Spirogyra
Subtopic: Algae |
78%
Level 2: 60%+
AIPMT - 2014
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Which of the following is responsible for peat formation?
1. Marchantia
2. Riccia
3. Funaria
4. Sphagnum
Subtopic: Bryophyte (Mosses) |
84%
Level 1: 80%+
AIPMT - 2014
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An alga which can be employed as food for human beings:
1. Ulothrix
2. Chlorella
3. Spirogyra
4. Polysiphonia
Subtopic: Algae | Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae: III |
86%
Level 1: 80%+
AIPMT - 2014
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Besides paddy fields, cyanobacteria are also found inside vegetative part of:
| 1. | Cycas | 2. | Equisetum |
| 3. | Psilotum | 4. | Pinus |
Subtopic: Gymnosperms: I | Gymnosperms |
79%
Level 2: 60%+
AIPMT - 2013
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Isogamous condition with non-flagellated gametes are found in:
1. Spirogyra
2. Volvox
3. Fucus
4. Chlamydomonas
Subtopic: Algae |
87%
Level 1: 80%+
AIPMT - 2013
Hints
Select the wrong statement:
| 1. | Anisogametes differ either in structure, function or behaviour |
| 2. | In Oomycetes, the female gamete is smaller and motile, while the male gamete is larger and non-motile |
| 3. | Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy |
| 4. | Isogametes are similar in structure, function and behaviour |
Subtopic: Algae |
79%
Level 2: 60%+
AIPMT - 2013
Hints
Read the following statements (A-E) and answer the question which follows them.
| A: | In liverworts, mosses, and ferns gametophytes are free-living |
| B: | Gymnosperms and some ferns are heterosporous |
| C: | Sexual reproduction in Fucus, Volvox and Albugo is oogamous |
| D: | The sporophyte in liverworts is more elaborate than that in mosses |
| E: | Both, Pinus and Marchantia are dioecious |
How many of the above statements are correct?
1. Two
2. Three
3. Four
4. One
Subtopic: Miscellaneous |
57%
Level 3: 35%-60%
AIPMT - 2013
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Cycas and Adiantum resemble each other in having:
1. Seeds
2. Motile sperms
3. Cambium
4. Vessels
Subtopic: Miscellaneous |
Level 3: 35%-60%
AIPMT - 2012
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Which one of the following is the correct statement?
| 1. | Pteridophyte gametophyte has a protonemal and leafy stage |
| 2. | In gymnosperms, female gametophyte is free-living |
| 3. | Antheridiophores and protonema are present in pteridophytes |
| 4. | Origin of seed habit can be traced in pteridophytes |
Subtopic: Miscellaneous |
74%
Level 2: 60%+
AIPMT - 2012
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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: Pteridophytes: Heterospory |
Level 4: Below 35%
AIPMT - 2011
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