Thapar University 2006 M.Sc BioTechnology Microbial Physiology &Genetics - Question Paper
Thapar Institute of Engineering & Technology
M.Sc. Biotechnology (1st Year)
Final Term exam
BH002 (Microbial Physiology &Genetics)
MM: 36
M.Sc Biotechnology (I-year)
Final Term Examination BH-002 (Microbial Physiology and Genetics)
Date 15.12.2006
MM: 36
Time : 3 hr
Differentiate between (ANY FOUR) 2x4=8
Ql
Q2
Q3
Q4
Q5
Q6
1. Latent period and burst period.
2. Prions and viroids
3. Cyclic Photophosphorylation and non cyclic photophosphorylation
4. Homolactic and heterolactic fermentation
5. Biogenesis v/s abiogenesis
Describe any two chemical agents, which acts as mutagens on replicating 3 DNA and describe their mode of action?
Give different biochemical pathways whereby glucose is utilized by 3
microorganisms indicating account of ATP yield. Why Clostridium sp. is an obligate anaerobe?
Write short notes on ANY FOUR of the following 3x4=1
1. One step growth curve 2
2. Conjugation
3. Plasmids
4. DNA repair mechanism
5. Ames test
List any five bacterial genera found in soil and any five, which are 4
considered as beneficial organisms. How can you enumerate the microbial load in soil?
How can you differentiate between spore and cyst? What are the various 3 physiological features by which a spore becomes resistant to adverse conditions?
What is in vitro mutagenesis? Explain by giving examples and what is 3
their specific application? Why there is no vaccine against HIV virus.
Q7
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| Earning: Approval pending. |
