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Pune University - MSc - II (Sem - III) : Developmental Botany & Plant , April 2010

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Total No. of Questions : 8] P1039 [Total No. of Pages : 2 [3727]- 301 M.Sc. - II BOTANY BO - 3.1 : Developmental Botany and Plant Tissue Culture (Sem.- III) (New) Time : 3 Hours] [Max. Marks : 80 Instructions to the candidates: 1) Attempt any five questions, taking at least two questions from each section. 2) Answers to the two sections should be written in separate answer books. 3) All questions carry equal marks. 4) Draw neat labelled diagrams wherever necessary. SECTION - I Q1) a) b) c) d) Mention characteristic features of plant development Explain in brief the role of polarity and symmetry in plant development Enlist the intrinsic factors that control plant development What are characteristics of juvenile phase of plant development? Q2) a) Explain histo-cytochemical changes at the shoot apex during transition from vegetative to flowering phase. Explain the development of any one type of ovule and female gametophyte. b) Q3) a) b) Illustrate the structure of a male germ unit. Explain the photo control of seed germination. Q4) Write explanatory notes on any two of the following : a) Development specific gene expression during embryogenesis. b) Hormonal control of seed germination. c) Apomixis. P.T.O. SECTION - II Q5) Explain the terms : a) Totipotency. b) Indirect organogenesis. c) Direct embryogenesis. d) Callus. Q6) a) b) Q7) a) b) What is micropropagation? Mention its stages and explain any one application of micropropagation. What is somaclonal variation? How are such variations induced? Mention their applications. Mention the types of cultures used for production of secondary metabolites in vitro. Explain any one. Explain in brief the process of embryo rescue. Q8) Write explanatory notes on any two of the following. a) Protoplast culture and somatic hybridisation. b) Application of plant tissue culture techniques for short term and long term storage of germplasm. c) Endosperm culture. EEE [3727]-301 2

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Additional Info : M.Sc. - II BOTANY, BO - 3.1 : Developmental Botany and Plant Tissue Culture (New Course) (Semister - III), Pune University
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