Q. No.A fungus used extensively in biochemical and genetic work is:
1.
Neurospora
2.
Trichoderma
3.
Paecilomyces
4.
Streptomyces
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A symbiotic relation between fungi and the roots of higher plants is called as:
| 1. | Lichen | 2. | Mycorrhiza |
| 3. | Amensal | 4. | Proto-cooperation |
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The disease caused by prions in humans is known as:
1. Bovine spongiform encephalopathy
2. Scrapie
3. CJD [Creutzfeldt Jakob Disease]
4. Infectious mononucleosis
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In the Two Kingdom classification, the Kingdom Plantae was erroneous with some major issues that include:
| I: | Placing bacteria and blue green algae with eukaryotic groups |
| II: | Grouping together the unicellular organisms with multicellular ones |
| III: | Placing heterotrophic fungi with autotrophic plants |
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
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What is not true regarding sexual reproduction in basidiomycetes?
| 1. | Sex organs are well developed |
| 2. | Plasmogamy is brought about by fusion of two vegetative or somatic cells of different strains or genotypes |
| 3. | Karyogamy and meiosis take place in basidium, producing four basidiospores |
| 4. | Basidiospores are produced exogenously on the basidium |
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Viruses are:
1. Obligate intracellular parasites
2. Obligate extracellular parasites
3. Facultative parasites
4. Free living, outside a living cell
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The cell walls of diatoms are ‘indestructible’ as they are embedded with:
| 1. | Silica | 2. | Chitin |
| 3. | Calcium | 4. | Raphides |
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Bacteriophages are:
1. Bacteria infecting ss RNA viruses
2. Bacteria infecting ds RNA viruses
3. Viruses that infect bacteria and generally have ds DNA
4. Viruses that infect bacteria and generally have ds RNA
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Yeast is unique amongst the members of Kingdom Fungi because it:
1. reproduces by ascospores
2. is unicellular
3. does not have a chitinous cell wall
4. does not have a sexual mode of reproduction
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The phenomenon of red tides is associated with blooms of:
| 1. | Zooxanthelle | 2. | Gonyaulax |
| 3. | Blue green algae | 4. | Ctenoplana and Beroe |
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