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CLASS XII MOCK TEST QUESTION PAPER SERIES 1 for 2016 ISC

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Sumit Roy
Sri Sri Academy (SSA), Kolkata

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ISC MOCK TEST SERIES 1 FOR THE ISC BIOLOGY 2016 Time: 3 Hours 1. 2. 3. 4 Max Marks - 70 GENERAL INSTRUCTIONS: Candidates are allowed additional 15 minutes for only reading the paper. They must NOT 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:- Section A ,Section B and Section C. All working including rough work; should be done on the same sheet as on adjacent to the rest of answer. The intended marks for questions or parts questions are given in brackets ( ) Part I (20 Marks) Answer all questions Question 1 (a) Give a brief answer for each of the following:(i) What are Exons and Introns? (ii) Human testes are always located outside the body cavity. Explain why? (iii) Name a commonly used vector (along with its name), used in genetic engineering. (iv) What will happen if the transpiration rate exceeds the amount of water absorbed? (4) (b) State the significant differences between the following:(i) Antibody and Interferon. (ii) Vasa differentia and Vasa efferentia. (iii) Test Cross and Back Cross. (iv) In situ conservation and Ex-situ conservation. (4) (c) State the exact location and the most important function of the following :- (Any four) (i) Bulliform cells. (ii) Kupffer cells. (iii) Tapetum cells. (iv) Sertoli cells. (v) Immunoglobulin (vi) Alpha Lactalbumin (vii) p53 gene (4) (d) Give a scientific term for each of the following:(4) (i) The gene of cancer causing virus responsible for transformation. (ii) Capability of an explants to generate a whole plant (iii) The areas those are extremely rich in species diversity, high endemism and under constant threat. (iv) Specific proteins synthesized by the host in response to the antigen P.T.O.

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