Q. No.In Haplontic life cycle:
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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| 1. | Red algae | 2. | Bryophytes |
| 3. | Pteridophytes | 4. | Gymnosperms |
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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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| A | B | C | D | |
| 1. | Vascular plants | Seed plants | Green plants | Land plants |
| 2. | Land plants | Green plants | Seed plants | Vascular plants |
| 3. | Green plants | Land plants | Vascular plants | Seed plants |
| 4. | Seed plants | Vascular plants | Land plants | Green plants |
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1. a homosporous plant with bisexual gametophytes
2. a heterosporous plant with bisexual gametophytes
3. a homosporous plant with unisexual gametophytes
4. a heterosporous plant with unisexual gametophytes
| 1. Gymnosperm | 2. Angiosperm |
| 3. Bryophyte | 4. Pteridophyte |
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| 1. | Gymnosperm | 2. | Angiosperm |
| 3. | Bryophyte | 4. | Pteridophyte |
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The given figure represents:
| 1. | Equisetum, a horsetail where A is macrophyll and B is microphyll |
| 2. | Sphagnum, peat moss where A is microphyll and B is macrophyll |
| 3. | Equisetum, a horsetail where A is archegonial branch and B is antheridial branch |
| 4. | Sphagnum, peat moss where A is archegonial branch and B is antheridial branch |
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