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Q. No.All of the following statements hold true for both protonema and prothallus, except
1.
Free living gametophyte structure
2.
Formed from spore
3.
Photosynthetic in nature
4.
Branched and filamentous
Subtopic: Bryophytes |
54%
Level 3: 35%-60%
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In mosses, the sex organs bearing stage is
1. Protonema
2. Leafy stage
3. Diploid plant
4. Prothallus
1. Protonema
2. Leafy stage
3. Diploid plant
4. Prothallus
Subtopic: Bryophytes |
83%
Level 1: 80%+
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State true (T) or false (F) for the given statements and select the correct option
A: Pteridophytes may flourish well in sandy soil conditions
B: Pteridophytes grow in very limited and restricted geographical regions
A: Pteridophytes may flourish well in sandy soil conditions
B: Pteridophytes grow in very limited and restricted geographical regions
| A | B | |
| 1. | T | F |
| 2. | F | T |
| 3. | T | T |
| 4. | F | F |
Subtopic: Pteridophytes |
72%
Level 2: 60%+
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Water is required for the transfer of male gametes to the mouth of archegonium in all, except
1. Mosses
2. Liverworts
3. Pteridophytes
4. Algae
1. Mosses
2. Liverworts
3. Pteridophytes
4. Algae
Subtopic: Algae |
72%
Level 2: 60%+
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Select the option not related to gymnosperms
| Column I | Column II | |
| 1. | Roots | Tap/coralloid |
| 2. | Leaves | Simple/Compound |
| 3. | Stem | Branched/Unbranched |
| 4. | Spores | Homo/Heterospores |
Subtopic: Gymnosperms |
78%
Level 2: 60%+
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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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