- 1(current)
Q. No.The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic
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| I. | Sporophytic generation is represented only by the one-celled zygote. |
| II. | Meiosis in zygote results in the formation of haploid gametes. |
| III. | The dominant photosynthetic stage is the free living gametophyte |
| 1. | Only I is correct |
| 2. | Only I and III are correct |
| 3. | Only II is correct |
| 4. | I, II and III are correct |
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1. Gametophyte is the dominant photosynthetically independent phase.
2. The sporophytic stage is represented by the single to few-celled diploid sporophyte.
3. All seed bearing plants follow this pattern with some variations.
4. Most algae follow this type of life cycle.
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I. Spirogyra is haplontic
II. Fucus is diplontic
III. Ectocarpus, Polysiphonia and kelps is haplo-diplontic
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
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| 1. Red algae | 2. Bryophytes |
| 3. Pteridophytes | 4. Gymnosperms |
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- 1(current)
Q. No.
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