Which of the following is not an example of an edible alga?
1. | Porphyra | 2. | Laminaria |
3. | Sargassum | 4. | Amanita |
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Column I | Column II | |
1. | Main photosynthetic pigment | Chlorophyll a, b |
2. | Cell wall | Inner layer of cellulose and outer layer of pectose |
3. | Stored food | Starch |
4. | Flagellar number and insertion | 2-8. unequal. basal |
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1. | Frond | 2. | Stipe |
3. | Holdfast | 4. | Rhizoid |
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Sexual reproduction is oogamous and accompanied by complete post-fertilization developments in the members of:
1. Chlorophyceae
2. Phaeophyceae
3. Rhodophyceae
4. Both Chlorophyceae and Phaeophyceae
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1. | Red algae | 2. | Green algae |
3. | Brown algae | 4. | Blue green algae |
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1. | They are dependent on water for sexual reproduction. |
2. | Archegonium is flask shaped and produces multiple eggs. |
3. | Sporophyte is attached to the photosynthetic gametophytes and derives nourishment from it. |
4. | The antherozoids are released into water. |
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Regarding Marchantia:
I: | The thallus is dorsi-ventral and closely appressed to the substrate. |
II: | The plant is monoecious. |
1. | Both I and II are incorrect |
2. | Only I is incorrect |
3. | Only I is correct |
4. | Both I and II are correct |
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1. Only I | 2. Only II |
3. Both I and II | 4. Neither I nor II |
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I: | Protonema is a gametophyte stage that is creeping, green, branched and frequently filamentous. |
II: | Leafy stage bears sex organs and is attached to the soil through multicellular and branched rhizoids. |
III: | Sex organs are produced at the apex of the leafy shoot. |
IV: | They have an elaborate mechanism of spore dispersal. |
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