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
Consider the following two statements:
I. Lichens are very good pollution indicators
II. In the presence of pollution, the lichens show profuse growth
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
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
Which of the following viruses has both DNA and RNA as its genetic material?
1. | Retroviruses | 2. | Bacteriophages |
3. | Plant viruses | 4. | None |
Match each item in Column I with one in Column II and choose the correct answer from the codes given:
Column I |
Column II |
A. Mucor |
a. Pin mould |
B. Rhizopus |
b. Bread mould |
C. Albugo |
c. White rust |
D. Pythium |
d. Damping-off of seedlings |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | b | a | c | d |
3. | a | b | d | c |
4. | b | a | d | c |
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 |