A ‘dikaryon’ stage is seen in the members of:
1. Ascomycetes and Phycomycetes
2. Ascomycetes and Basidiomycetes
3. Basidiomycetes and Phycomycetes
4. Basidiomycetes and Deuteromycetes
Alternaria, Colletotrichum and Trichoderma belong to the class:
1. | Phycomycetes | 2. | Ascomycetes |
3. | Basidiomycetes | 4. | Deuteromycetes |
In general, the viruses that infect plants have:
1. | Single stranded RNA | 2. | Single stranded DNA |
3. | Double stranded RNA | 4. | Double stranded DNA |
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
Morels and truffles are edible fungi belonging to the class:
1. | Phycomycetes | 2. | Ascomycetes |
3. | Basidiomycetes | 4. | Deuteromycetes |
A fungus used extensively in biochemical and genetic work is:
1. | Neurospora | 2. | Trichoderma |
3. | Paecilomyces | 4. | Streptomyces |
A symbiotic relation between fungi and the roots of higher plants is called as:
1. | Lichen | 2. | Mycorrhiza |
3. | Amensal | 4. | Proto-cooperation |
The disease caused by prions in humans is known as:
1. Bovine spongiform encephalopathy
2. Scrapie
3. CJD [Creutzfeldt Jakob Disease]
4. Infectious mononucleosis
Viruses are:
1. Obligate intracellular parasites
2. Obligate extracellular parasites
3. Facultative parasites
4. Free living, outside a living cell
The cell walls of diatoms are ‘indestructible’ as they are embedded with:
1. | Silica | 2. | Chitin |
3. | Calcium | 4. | Raphides |