Master of Science I (Biotechnology) Examination: Oct Nov 2016
Semester I (New CBCS)
SLR No. Day
Date Time Subject Name Paper No. Seat No.
SLR-SK
93
Wednesday
16/11/2016
10.30 AM
to
01.00 PM
Microbiology
C
HCT 1.1
Instructions: Section-I is compulsory.
Answer any four questions from Section-II
Total Marks: 70
Section I
Q.1 Multiple Choice Questions 07
The foundation for the germ theory of disease was set down by
Robert Koch Ronald Ross
Louis Pasteur Walter Reed
Mycoplasmas are different from the other prokaryotes by
presence of chitin in cell
walls
presence of murrain in cell walls
presence of proteins in cell
walls
absence of cell wall itself
Culture medium used for fungus is
Sabouraud's medium Nutrient broth
Nutrient broth Minimal agar
The bacteria which are able to grow at 00C but which grow at 200C to 300C
also, are known as
Psychrophiles Facultative psychrophiles
Average psychrophiles Mesophiles
Example for DNA viruses:
Adeno virus Papova virus
Herpes virus and cauliflower
moisaic
All of the above
Penicilin is commercially produced by
P. notatum P. chrysogenum
P. citrinum P. roquefortii
Ziehl- Neelson stain is a
Simple stain Counter stain
Differential stain None of them
Define the following terms: 07
Pili
Pasteurisation
Barophiles
Archaebacteria
Cyanobacteria
Bacteriophage
Axenic culture
Section II
Q.2 How are the prokaryotes classified? Add a note on the present used method of
classifying the Bacteria.
14
Q.3 What is antagonism? What is its influence in discovery of antibiotics? 14
Q.4 Explain what is numerical taxonomy? How does it influence the classification of
biological systems?
14
Q.5 Answers any two of the following: 14
What are the physical methods of sterilization?
What is Bergy's Manual? What is its significance on biological classification?
Explain symbiotic associations with suitable examples.
Q.6 Write short notes on any two of the following 14
Egg inoculation
Differential staining
Preservation of cultures