Q. No.Pigment-containing membranous extensions in some cyanobacteria are :
1. Basal bodies
2. Pneumatophores
3. Chromatophores
4. Heterocysts
1. Basal bodies
2. Pneumatophores
3. Chromatophores
4. Heterocysts
Besides paddy fields, cyanobacteria are also found inside vegetative part of :
1. Cycas
2. Equisetum
3. Psilotum
4. Pinus
Archaebacteria differ from eubacteria in:
1. Cell membrane structure
2. Mode of nutrition
3. Cell shape
4. Mode of reproduction
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Five kingdom system of classification suggested by R.H. Whittaker is not based on:
1. Presence or absence of a well defined nucleus
2. Mode of reproduction
3. Mode of nutrition
4. Complexity of body organisation
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Which of the following shows coiled RNA strand and capsomeres?
1. Polio virus
2. Tobacco mosaic virus
3. Measles virus
4. Retro virus
Viruses have :
1. DNA enclosed in a protein coat
2. Prokaryotic nucleus
3. Single Chromosome
4. Both DNA and RNA
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Which one of the following matches is correct?
| 1. | Alternaria | Sexual reproduction absent | Deuteromycetes |
| 2. | Mucor | Reproduction by Conjugation | Ascomycetes |
| 3. | Agaricus | Parasitic fungus | Basidiomycetes |
| 4. | Phytophthora | Aseptate mycelium | Basidiomycetes |
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The guts of cow and buffalo possess:
1. Chlorella spp.
2. Methanogens
3. Cyanobacteria
4. Fucus spp.
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