BS MS Botany MCQS Past Papers Notes Sample Papers in pdf download now
1.All of the these have cellular organization except.
2.The viruses which shows Lysogenic cycle are also called.
A. Virulent phage
B. Temperate phage
D. Masaic phage
3.Viruses can be recognized only by their.
A. Physical behaviour
B. Chemical behaviour
C. Biological behaviour
D. Physiological behaviour
4.These are only Intracellular obligate parasite.
5.All crystallized plant viruses have been found to consist mainly of.
6.The protein coat of T.M.V. consists of how many identical protein subunits.
7.The phenomenon of transfer of genetic material (DNA) from one bacterium to another by third party
D. Binary fission
8. Techoic acid is usually present in.
C. Gram negative bacteria
D. Gram positive bacteria
9.Which one is usually absent in bacteria.
A. Cell membrane
C. Nuclear membrane
10.Bacteria having no flagella are termed as.
11.Bacillus aceti convert the sugar solution into.
12.Bacteria have been descendent from the.
A. Blue Green Algae
D. Green Algae
13.Reserve food material in Blue green algae is.
14.The Eight cell stage in Volvox is known as.
15.Dwarf male in Oedogonium is called.
16.A Virus which incorporate its DNA into the DNA of the host organism is.
B. Virulent phage
C. Lytic phage
D. All of these
D. Non cellular
18.Which one is essential for the reproduction of viruses.
A. Living host
C. High temperature
D. Food and water
19.Tobacco mosaic disease is a…. disease.
D. None of these
20.Which one is not the feature of bacteria.
A. Genetic recombination
B. Asexual reproduction
21.Which organelle is found in bacteria.
B. Endoplasmic reticulum
22.Pilli are involved in mating process between two bacteria called.
23.The locomotion in bacteria occur with.
24.Cyanobacteria are photosynthetic partner in most of.
A. Mycorhiza association
C. Symbiotic association
25.Photosynthetic bacteria liberate.
26.Non motile spores formed from certain vegetative cells during unfavourable condition in Nost.
27.In Nostoc heterocyst are concerned with.
A. Nitrogen fixation
C. Both A&B
28.Single filament of the nostoc without mucilage is called.
29.Which one of the following is a thallophyte.
C. Both A&B
30.Among the following which is obtained from algae.
C. Agar agar