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Q. No.Male gametophyte in gymnosperms is called
1.
Antherozoid
2.
Antheridium
3.
Pollen grain
4.
Generative cell
Subtopic: Gymnosperms |
68%
Level 2: 60%+
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In Cycas which of the following structures is not seen?
| 1. | Megasporophyll | 2. | Male cone |
| 3. | Female cone | 4. | Pinnate leaves |
Subtopic: Gymnosperms |
Level 3: 35%-60%
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Each embryo sac consists of
1. Synergids and an egg cell
2. Polar nuclei, secondary nucleus and an egg cell
3. Egg apparatus, three antipodals and two polar nuclei
4. Egg apparatus and antipodals
1. Synergids and an egg cell
2. Polar nuclei, secondary nucleus and an egg cell
3. Egg apparatus, three antipodals and two polar nuclei
4. Egg apparatus and antipodals
84%
Level 1: 80%+
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The gametophytic phase can be represented by the single to few celled gametophyte or few to multicelled gametophyte as in
1. Fucus and seed plants respectively
2. Seed plants and Fucus respectively
3. Ectocarpus and Fucus respectively
4. Spirogyra and Fucus respectively
1. Fucus and seed plants respectively
2. Seed plants and Fucus respectively
3. Ectocarpus and Fucus respectively
4. Spirogyra and Fucus respectively
Level 3: 35%-60%
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In which of the following the gametophyte is photosynthetic but not dominant body?
1. Pteridophytes
2. Mosses
3. Liverworts
4. Green algae
1. Pteridophytes
2. Mosses
3. Liverworts
4. Green algae
Subtopic: Pteridophytes |
84%
Level 1: 80%+
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Which one is the oldest in following?
1. Gymnosperms
2. Angiosperms
3. Bryophytes
4. None of these
1. Gymnosperms
2. Angiosperms
3. Bryophytes
4. None of these
Subtopic: Bryophytes |
87%
Level 1: 80%+
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Match the storage products listed under column I with the organism given under column II:
1. A-3, B-4, C-1, D-5
2. A-4, B-3, C-5, D-2
3. A-5, B-4, C-1, D-3
4. A-2, B-1, C-4, D-3
| Column I | Column II | ||
| A. | Glycogen | 1. | Sargssum |
| B. | Pyrenoids | 2. | Nostoc |
| C. | Laminarin and mannitol | 3. | Polysiphonia |
| D. | Floridean starch | 4. | Spirogyra |
| 5. | Agaricus |
2. A-4, B-3, C-5, D-2
3. A-5, B-4, C-1, D-3
4. A-2, B-1, C-4, D-3
Subtopic: Algae | Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Chlorophyceae: Green Algae |
71%
Level 2: 60%+
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Heterotrichous thallus is shown by which organism:
1. Chlamydomonas
2. Ectocarpus
3. Spirogyra
4. Volvox
1. Chlamydomonas
2. Ectocarpus
3. Spirogyra
4. Volvox
Subtopic: Pheophyceae: Brown Algae |
68%
Level 2: 60%+
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Subtopic: Chlorophyceae: Green Algae |
54%
Level 3: 35%-60%
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Shape of chloroplast of Ulothrix is
1. Star-shaped
2. band-shaped
3. girdle-shaped
4. spinal shaped
1. Star-shaped
2. band-shaped
3. girdle-shaped
4. spinal shaped
Subtopic: Chlorophyceae: Green Algae |
68%
Level 2: 60%+
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