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ISC Board Specimen 2014 : Biology Paper 1 (Theory)

4 pages, 49 questions, 48 questions with responses, 110 total responses,    0    0
ISC 12th
Indian School Certificate Examination (ISC), New Delhi
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BIOLOGY PAPER - 1 (THEORY) (Botany and Zoology) (Three hours) (Candidates are allowed additional 15 minutes for only reading the paper. They must OT start writing during this time.) -------------------------------------------------------------------------------------------------------------------------Answer all questions in Part I and six questions in Part II, choosing two questions from each of the three sections A, B and C. All working including rough work, should be done on the same sheet as, and adjacent to, the rest of the answer. The intended marks for questions or parts of questions are given in brackets [ ]. -------------------------------------------------------------------------------------------------------------------------- PART I (20 Marks) Answer all questions. Question 1 (a) Mention one significant difference between each of the following: (i) Sertoli cells and spermatids. (iii) Incomplete dominance and co-dominance. (iv) Autosomes and sex chromosomes. (v) (b) Open vascular bundle and closed vascular bundle. (ii) [5] Osmosis and diffusion. Give reasons for the following: [5] (i) Wooden doors and windows get jammed during monsoon season. (ii) Some people can move their pinna. (iii) Seedlings should be transplanted early in the morning or late in the evening. (iv) The sex of the child depends upon the father. (v) Mother s blood does not circulate through the foetus. 1 ISC Specimen Question Paper 2014

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