Q. No.The five kingdom classification was proposed by
1.
R. H. Whittaker
2.
C. Linnaeus
3.
A. Roxberg
4.
Virchow
An association between roots of higher plants and fungi is called
1. Lichen
2. Fern
3. Mycorrhiza
4. BGA
With respect to fungal sexual cycle, choose the correct sequence of events
1. Karyogamy, Plasmogamy and Meiosis
2. Meiosis, Plasmogamy and Karyogamy
3. Plasmogamy, Karyogamy and Meiosis
4. Meiosis, Karyogamy and Plasmogamy
Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong?
1. Monera
2. Protista
3. Fungi
4. None of the above
Identify the incorrectly matched pairs:
| I: | M. W. Beijerinck: Gave the name virus |
| II: | D. J Ivanowsky: Recognized the causal agents of mosaicism in tobacco to be larger than bacteria |
| III: | M. W. Beijerinck : Contagium vivum fluidum |
| IV: | W. M. Stanley: Discovered HIV |
| 1. | I and III |
2. | I and II |
| 3. | III and IV |
4. | II and IV |
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
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 |
Methanogens are commonly present in:
1. Alimentary canal of the lower invertebrates
2. Symbiotic relationships with xerophytic plants
3. Gut of ruminant animals
4. Close associations with corals
Identify the incorrect statement regarding Eubacteria:
| 1. | Cyanobacteria can fix atmospheric nitrogen in specialized cells called heterocysts |
| 2. | Chemosynthetic autotrophic bacteria play a great role in recycling nitrogen and phosphorus |
| 3. | Heterotrophic bacteria are the only bacteria that do not include any economically useful microbe for humans |
| 4. | Mycoplasma lack cell wall and can survive without oxygen |
© 2025 GoodEd Technologies Pvt. Ltd.