Which of the following features is common to prokaryotes and many eukaryotes?
1. Chromosomes present
2. Cell wall present
3. Nuclear membrane present
4. Sub cellular organelles present
All eukaryotic unicellular organisms belong to
1. Monera
2. Protista
3. Fungi
4. Bacteria
The five kingdom classification was proposed by
1. | R. H. Whittaker | 2. | C. Linnaeus |
3. | A. Roxberg | 4. | Virchow |
Organisms living in salty are called as
1. Methanogens
2. Halophiles
3. Heliophytes
4. Thermoacidophiles
Naked cytoplasm, multinucleated and saprophytic are the characteristics of
1. | Monera | 2. | Protista |
3. | Fungi | 4. | Slime molds |
An association between roots of higher plants and fungi is called
1. Lichen
2. Fern
3. Mycorrhiza
4. BGA
A dikaryon is formed when
1. Meiosis is arrested
2. The two haploid cells do not fuse immediately
3. Cytoplasm does not fuse
4. None of the above
Contagium vivum fluidum was proposed by
1. | D. J. Ivanowsky | 2. | M. W. Beijerinck |
3. | Stanley | 4. | Robert Hooke |
Mycobiont and Phycobiont are formed in
1. | Mycorrhzia | 2. | Root |
3. | Lichens | 4. | BGA |
Difference between Virus and Viroid is
1. Absence of protein coat in viroid but presence of virus
2. Presence of low molecular weight RNA in virus but absence in viroid
3. Both 1 and 2
4. None of the above