Q. No.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 |
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 |
The phenomenon of red tides is associated with blooms of:
| 1. | Zooxanthelle | 2. | Gonyaulax |
| 3. | Blue green algae | 4. | Ctenoplana and Beroe |
Identify the incorrect statement regarding Euglenoids:
| 1. | Majority are found in fresh stagnant water |
| 2. | Presence of two flagella |
| 3. | Behave as heterotrophs when deprived of sunlight |
| 4. | Pigments entirely different from those found in higher plants |
Which of the following is not true for fungi belonging to the class phycomycetes?
| 1. | Aseptate and coenocytic mycelium |
| 2. | Spores endogenously produced in sporangium |
| 3. | Asexual reproduction by nonmotile zoospores or motile aplanospores |
| 4. | Found in aquatic habitats, decaying wood or as obligate parasites on plants |
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