Q. No.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.
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
Which of the following rRNAs acts as structural RNA as well as ribozyme in bacterial?
1. 5-8s rRNA
2. 5S rRNA
3. 18 S rRNA
4. 23S rRNA
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Study the four statements (A – D) given below and select the two correct ones out of them:
A. Definition of biological species was given by Ernst Mayr.
B. Photoperiod does not affect reproduction in plants.
C. Binomial nomenclature system was given by R. H. Whittaker.
D. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are
1. A and B
2. B and C
3. C and D
4. A and D
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