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ISC Board Specimen 2015 : Biology Paper 1 (Theory)

4 pages, 52 questions, 48 questions with responses, 103 total responses
Isc
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 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 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) Give a brief answer for each of the following: [4] (i) (ii) Why are the annual rings absent in plants growing along the coastal areas? (iii) What is a Punnett-square used for? (iv) (b) What happens if excess fertilizers are added to the soil? Malignant tumours are considered dangerous. Why? Each of the following statements/ questions has four suggested answers. Choose the correct option in each case: 1. [4] Gene therapy can be used to correct one of the following: (i) SCID (ii) HIV (iii) Typhoid (iv) Hepatitis ---------------------------------------------------------------------------------------------------------------------------62 ISC SAMPLE QUESTION PAPER 2015

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