Q. No.Functional megaspore in an angiosperm develops into:
1.
Ovule
2.
Endosperm
3.
Embryo sac
4.
Embryo
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Life cycle of Ectocarpus and Fucus respectively are:
| 1. Haplontic, Diplontic | 2. Diplontic, Haplodiplontic |
| 3. Haplodiplontic, Diplontic | 4. Haplodiplontic, Haplontic |
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Fusion of two gametes which are dissimilar in size is termed as
| 1. Oogamy | 2. Isogamy |
| 3. Anisogamy | 4. Zoogamy |
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Holdfast, stipe and frond constitutes the plant body in case of
1. Rhodophyceae
2. Chlorophyceae
3. Phaeophyceae
4. All of the above
A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to.
| 1. | Pteridophytes | 2. | Gymnosperms |
| 3. | Monocots | 4. | Bryophytes |
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A prothallus is
| 1. | A structure in pteridophytes formed before the thallus develops |
| 2. | A sporophytic free living structure formed in pteridophytes |
| 3. | A gametophyte free living structure formed in pteridophytes |
| 4. | A primitive structure formed after fertilization in pteriodophytes |
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Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
| 1. Monocots | 2. Dicots |
| 3. Pteridophytes | 4. Gymnosperms |
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The embryo sac of an Angiosperm is made up of
1. 8 cells
2. 7 cells and 8 nuclei
3. 8 nuclei
4. 7 cells and 7 nuclei
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If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm
1. 36
2. 18
3. 54
4. 72
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