Fusion of two gametes which are dissimilar in size is termed as
1. Oogamy | 2. Isogamy |
3. Anisogamy | 4. Zoogamy |
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The form and size of algae is highly variable. Which of the following will not be true?
I. Volvox is a colonial alga.
II. Ulothrix and Spirogyra do not form filaments.
III. Kelps form massive plants bodies.
1. Only II | 2. Only III |
3. Both I and II | 4. Both II and III |
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Identify the incorrectly matched pair:
Alga | Sexual reproduction | |
I. | Ulothrix | Isogamous; non-flagellated gametes |
II. | Spirogyra | Isogamous; flagellated gametes |
III. | Udorina | Anisogamous |
IV. | Fucus | Oogamous |
1. Only III | 2. I, II and III |
3. Only I and II | 4. Only III and IV |
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Which of the following is not an example of an edible alga?
1. Porphyra | 2. Laminaria |
3. Sargassum | 4. Amanita |
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Aplanogametes [gametes that do not have flagella] are the special features of:
1. Spirogyra and Zygnema
2. Spirogyra and Vaucheria
3. Ulothrix and Zygnema
4. Chlamydomanas and Ulothrix
Which of the following is not a green alga?
1. Ulothrix | 2. Chara |
3. Volvox | 4. Ectocarpus |
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The structure marked as “b” can be used for:
1. Photosynthesis 2. Attachment 3. Buoyancy 4. Reproduction |
The term ‘seaweeds’ is used to describe several macroscopic, multicellular marine algal species belonging to:
I. Chlorophyceae
II. Phaeophyceae
III. Rhodophyceae
1. | I and II only | 2. | I and III only |
3. | II and III only | 4. | I, II and III |