University questions

B.Sc.ZOOLOGY DEGREE EXAMINATION, APRIL 2016
Sixth Semester Sub.Code: GMZO61 Code No. 31145
Zoology - Main
APPLIED BITECHNOLOGY
(For those who joined in July 2012 and afterwards)
Time: 3hours Maximum :75 marks
PART A—(10 × 1 = 10 marks)
Answer ALL questions
Choose the correct answer:
1. In the sedimentation process of sewage treatment the chemical used is
(a) Aluminium sulpahate- Alum
(b) Ferric choride
(c) Ferric sulphate
(d) All of theese

2. The cleaning up of toxic contaminants in the environment using the
activity of natural microbial population is referred as
(a) Biodegradation
(b) Biomonitoring
(c) Biotransmission
(d) Biopolymerisation
3. The father of plant tissue culture is
(a) Skoog
(b) Miller

(c) Haber Landt
(d) Nitsch
4. The number of genes present in ‘nif’ gene cluster is
(a) 21
(b) 19
(c) 17
(d) 15
5. The fermentor commonly used to carryout fermentation reaction is

(a) Stirred tank reactor
(b) Air lift fermentof
(c) Cyclone fermentor
(d) All of these
6. Metaboloites which are produced by plants as defense chemicals are
referred as
(a) Primary metabolites
(b) Secondary metabolites
(c) Tertiary metabolites
(d) Quarternary metabolites
7. An enzyme which catalyze intra molecular rearrangement of atoms are
grouped into
(a) Lyases
(b) Transferases
(c) Ligases
(d) Isomerases
8. The microbe participated in the production of α amylase in
(a) Bacillus coagulans

(b) Bacillus cereus
(c) Candida lipplytica
(d) Trichoderma viridae
9. Human Genome Organization was started and completed between
(a) 1990 and 2003
(b) 1989 and 2002
(c) 1991 and 2005
(d) 1988 and 2001
10. Generally probe DNAs are labelled with radioactive

(a) P32
(b) I125
(c) C14
(d) Both (a) and (b)
PART B-(5 × 5 = 25 marks)
Answer ALL questions, Choosing (a) or (b)
Each answer should not exceed 250 words
11. (a) Explain how pesticides are degraded microbially
(or)
(b) Analyse the role of genetically engineered microorganisms in
bioremediation
12. (a) What are single cell proteins? Mention their applications
(or)
(b) Explain callus culture and its applications
13. (a) State the principle and ideal features of bioreactor.
(or)

(b) Give an account on products of commercial importances from bioprocess
technology
14. (a) Elucidate the physical and chemical properties of enzymes.
(or)
(b) Analyse the industrial applications of microbial enzymes.
15. (a) What are Bioweapons? Explain their merits and demerits
(or)
(b) Write an account on objectives and principles of Human genome project.

PART C - (5 × 8 = 40 marks)
Answer ALL questions, Choosing either (a) or (b)
Each answer should not exceed 600 words
16. (a) High light the biotechnological methods used in sewage and
wastewater treatment.
(or)
(b) Discuss the role of microbes in biomining and bioleaching.
17. (a) Explain the stages involved in micropropagation and comment on its
advantages.
(or)
(b) Describe the applications of biotechnological tools for disease diagnosis
18. (a) Explain the designs of conventional and advanced types of
bioreactors.
(or)
(b) What are primary metabolites? Explain the steps involved in Ethanol
production.

19. (a) Summarize the methods adopted in Enzyme immobilization and their
applications.
(or)
(b) Critically analyze the types and applications of biosensors.
20. (a) Write an elaborate account on Gene therapy, the types and
applications.
(or)
(b) Explain the vectors used in Gene therapy and add notes on gene therapy
for cancer.

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