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Pune University - SY BSc (Sem - II) BOTANY - I, April 2010

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Total No. of Questions :4] [Total No. of Pages : 2 [3717] - 207 S.Y. B.Sc. BOTANY P485 BO : 221 Structural Botany (Anatomy, Embryology and Palynology) (New Course) (Paper - I) (Sem. - II) (Theory) Time :2 Hours] [Max. Marks : 40 Instructions to the candidates: 1) All questions are compulsory. 2) Figures to the right indicate full marks. 3) Draw neat and labelled diagrams wherever necessary. Q1) Attempt the following a) Define anatomy. b) What is anomalous secondary growth? c) Write any two functions of collenchyma. d) What is principle of incompressibility? e) Define amoeboid type of tapetum. f) Write any two significances of double fertilization. g) What is the function of endothecium? h) What is experimental embryology? i) Define paleopalynology. j) [10] What is proximal pole of pollen grain? Q2) Answer any two of the following : [10] a) What are glandular hairs? Give their types with suitable examples. b) Explain the mechanical tissues and their distribution in dicot stem. c) Give the applications of palynology in apiculture. P.T.O. Q3) Write short notes on any two of the following : a) Helobial endosperm. b) Different types of microspore tetrads. c) [10] NPC system of classification of pollen grains. Q4) Define normal secondary growth, and briefly explain the process in annual dicot stem. [10] OR What is megasporogenesis? Describe the structure of typical embryo sac. #### [3717]-207 2

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Additional Info : S.Y. B.Sc. Botany (Semister - II), BO - 221 : Structural Botany (Anatomy, Embryology and Palynology) (Paper - I) (New Course), Pune University
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