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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION - BIO TECHNOLOGY
THIRD SEMESTER – NOVEMBER 2011
BT 3817 - PLANT MOLECULAR BIOLOGY
Date : 02-11-2011
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
PART – A
(20 marks)
ANSWER ALL THE QUESTIONS
1. Choose the correct answer:
(5 X 1 = 5)
1) What is the contribution of Barbara McClintock ?
a) Transcription
b) Translation
c) PCR
d) Jumping genes
2) Gibberellins were first isolated from which source?
a) Fungus
b) Bacteria
c) Virus
d) Algae
3) Veggie vaccines
es are produced from
a) Plants
b) Algae
4) Brown rust of wheat is caused by
a) Puccinia recondita b) Ustilago trititii
c) Animals
c) U. maydis
d) Virus
d) U. kolleri
ich is not used as a carrier in preparing cyanobacterial inoculant?
5) Which
a) Sugarcane waste
b) Paper waste
c) Polyurethane foam
d) Straw
II. State whether the following are True or False, if false give reason
(5 X 1 = 5)
6) Enhancers are bidirectional elements.
7) Systemin is a peptide hormone.
8) Nitrogenase enzyme is involved in nitrogen fixation.
9) Ti plasmid is present in Agrobacterium rhizogenes.
rhizogenes
10) Zymase is obtained from fungus.
III. Complete the following:
11) Anther culture was first done by _______ and ________.
12) _________ is a seed storage protein in soybean.
13) LCO
CO stands for ______________.
14) Stilbane synthase is a key enzyme for the synthesis of a common_________.
15) ________ is an example of algal antibiotic.
IV. Answer the following each within 50 words only.
16) Define totipotency.
17) Mention the use of auxin and cite two examples.
18) How emasculation is done?
ses of plants and cite two examples.
19) What are biotic stresses
20) Enumerate the action of mycobacteriocides
(5 x 1 = 5)
(5 X 1 = 5)
PART B
V. Answer the following, each answer within 500 words; draw diagrams wherever necessary
(5 X 8 = 40 marks)
21 a) What are the various tissue culture media and mention their uses?
Or
b) Schematically show the structural features of a plant gene.
22 a) Discuss plant metabolic engineering with an example.
Or
b) Write a note on photomorphogenetic effects.
23a) Enumerate the steps involved in hybridization.
Or
b) Give an account on edible vaccines with examples
24a) What are the various viral resistance genes? Mention their advantages and limitations?
Or
b) Give the flow chart for the production of transgenic tobacco.
25a) Discuss the carrier based immobilization technique for microalgae.
Or
b) Write an account on four fungal secondary metabolites.
PART - C
VI Answer the following, each within 1500 words; draw diagrams wherever necessary
(2 X 20 = 40 marks)
26) Describe the protocol for meristem culture. Mention its advantages.
27) Explain the molecular aspects of seed development in cotton.
28) Explain the various fungal and bacterial pathogen related proteins formed during
biotis stresses in plants
29) Discuss the steps involved in mushroom cultivation. Add a note on its food value
along with advantages and examples.
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