Asexual reproduction in fungi takes place by:
1. | Fragmentation | 2. | Fission |
3. | Budding | 4. | Spores |
The chief producers in the oceans are:
1. | Floating hydrophytes | 2. | Blue green algae |
3. | Desmids | 4. | Diatoms |
The correct chronology of the steps seen in the sexual cycle in fungi will be:
1. Plasmogamy – Karyogamy – Meiosis in zygote
2. Karyogamy – Plasmogamy – Meiosis in zygote
3. Plasmogamy – Meiosis in zygote – Karyogamy
4. Karyogamy – Meiosis in zygote – Plasmogamy
Deuteromycetes are also called as Fungi imperfecti because:
1. They do not have a thalloid body
2. They can contain chlorophyll
3. There are no parasitic members
4. Sexual phases are not known
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 |