Q. No.The imperfect fungi which are decomposer of litter and help in mineral cycling belong to:
1.
Basidiomycetes
2.
Phycomycetes
3.
Ascomycetes
4.
Deuteromycetes
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Choose the wrong statement:
| 1. | Neurospora is used in the study of biochemical genetics |
| 2. | Morels and truffles are poisonous mushrooms |
| 3. | Yeast is unicellular and useful in fermentation |
| 4. | Penicillium is multicellular and produces antibiotics |
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Which one of the following statements is wrong?
1. Phycomycetes are also called algal fungi.
2. Cyanobacteria are also called blue-green algae.
3. Golden algae are also called desmids.
4. Eubacteria are also called false bacteria.
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Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom:
1. Animalia
2. Monera
3. Protista
4. Fungi
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One of the major components of cell wall of most fungi is :
1. Hemicelluloses
2. Chitin
3. Peptidoglycan
4. Cellulose
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The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
1. Eubacteria
2. Halophiles
3. Thermoacidophiles
4. Methanogens
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Which of the following statements is wrong for viroids?
1. Their RNA is of high molecular weight
2. They lack a protein coat
3. They are smaller than viruses
4. They cause infections
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Select the wrong statement.
| 1. | Diatoms are microscopic and float passively in water. |
| 2. | The walls of diatoms are easily destructible. |
| 3. | ‘Diatomaceous earth’ is formed by the cell walls of diatoms. |
| 4. | Diatoms are chief producers in the oceans. |
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Select the mismatch.
1. Methanogens-Prokaryotes
2. Gas vacuoles-Green bacteria
3. Large central vacuoles-Animal cells
4. Protists-Eukaryotes
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