This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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B.Sc. (Part-III) Semester—VI Examination
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6S : BIOTECHNOLOGY (R/Y)
(Plant Biotechnology)
Time : Three Hours] [Maximum Marks : 80
Note :— (1) All questions are compulsory.
(2) Draw neat and well labelled diagrams wherever necessary.
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- (A) Fill in the blanks :
- The movement of ions across cell membrane without need of cellular energy is __________.
- Exchange of CO2 and O2 in plants takes place through __________.
- T-DNA is found in __________ plasmid.
- Use of electric pulse for gene transfer is called __________.
- Hormone responsible for Apical Dominance is :
- (a) Auxin
- (b) Cytokinin
- (c) Ethylene
- (d) GA
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- Aseptic inoculation of explant on Nutrient medium requires :
- (a) Centrifuge
- (b) Growth chamber
- (c) Laminar Air flow
- (d) Autoclave
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- Enzymes required for protoplast isolation are :
- (a) Invertases
- (b) Cellulase and Pectinase
- (c) Nucleases
- (d) Zymase
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- Triploids are produced by :
- (a) Pollen culture
- (b) Anther culture
- (c) Endosperm culture
- (d) All of the above
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- Define Organogenesis.
- What is Somaclonal variation ?
- Give the role of Autoclave in Tissue culture.
- What is Geotropism ?
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- Describe :
- (a) Growth curve.
- (b) Structure of stomata.
- (c) Geotropism.
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- (d) Apical dominance
- (e) Radiant energy.
- (f) Phototropism.
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- Explain in detail the physiological roles of Auxin. OR Explain in detail the physiological roles of Gibberellins.
- Explain in brief :
- (a) Practical applications of Tissue culture.
- (b) Growth chamber.
- (c) Composition of MS medium.
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- (d) Design of Tissue Culture Laboratory.
- (e) Commercialization of Tissue Culture.
- (f) Autoclave.
- Describe :
- (a) Micropropagation.
- (b) Hardening methods of Tissue cultured plants.
- (c) Embryo rescue.
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- (d) Anther culture.
- (e) Applications of somaclonal variation.
- (f) Callus culture.
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- Describe techniques of Single cell suspension culture and its applications. OR Describe protoplast isolation and regeneration in detail.
- Describe :
- (a) Ti-plasmid.
- (b) Somatic hybridization
- (c) Gene gun method of gene transfer.
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- (d) Electroporation
- (e) Markers for selection of hybrid cells
- (f) Cybrids.
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Firstranker's choiceThis download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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