In general, the viruses that infect plants have:

1. Single stranded RNA 2. Single stranded DNA
3. Double stranded RNA 4. Double stranded DNA

Subtopic:  Virus, Viroids & Prions |
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The basis of classification for the division of Kingdom Fungi into various classes includes all the following except:
1. Morphology of the mycelium
2. Mode of spore formation
3. Types of pigments present
4. Fruiting bodies

Subtopic:  Kingdom Fungi: Introduction |
 78%
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Morels and truffles are edible fungi belonging to the class:

1. Phycomycetes 2. Ascomycetes
3. Basidiomycetes 4. Deuteromycetes
Subtopic:  Kingdom Fungi: Ascomycetes |
 76%
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A fungus used extensively in biochemical and genetic work is:

1. Neurospora 2. Trichoderma
3. Paecilomyces 4. Streptomyces
Subtopic:  Kingdom Fungi: Ascomycetes | Kingdom Fungi: Basidomycetes | Mycorrhiza | Virus, Viroids & Prions |
 92%
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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
Subtopic:  Kingdom Fungi: Deuteromycetes | Kingdom Fungi: Zygomycetes | Kingdom Fungi: Ascomycetes | Kingdom Fungi: Basidomycetes |
 94%
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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

Subtopic:  Virus, Viroids & Prions |
 76%
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Viruses are:
1. Obligate intracellular parasites
2. Obligate extracellular parasites
3. Facultative parasites
4. Free living, outside a living cell

Subtopic:  Virus, Viroids & Prions |
 81%
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The cell walls of diatoms are ‘indestructible’ as they are embedded with:

1. Silica 2. Chitin
3. Calcium 4. Raphides
Subtopic:  Kingdom Protista: Chrysophytes |
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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

Subtopic:  Virus, Viroids & Prions |
 75%
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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
Subtopic:  Kingdom Protista: Dinoflagellates |
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