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ISC Class XII Board Specimen 2017 : Biotechnology Paper 1

4 pages, 51 questions, 6 questions with responses, 6 total responses,    0    0
ISC 12th
Indian School Certificate Examination (ISC), New Delhi
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BIOTECHNOLOGY PAPER 1 (THEORY) (Three hours) Maximum Marks: 70 (Candidates are allowed additional 15 minutes for only reading the paper. They must NOT start writing during this time.) ------------------------------------------------------------------------------------------------------------------------Answer Question 1 (compulsory) from Part I and five questions from Part II. The intended marks for questions or parts of questions are given in brackets [ ]. ------------------------------------------------------------------------------------------------------------------------- PART I (20 Marks) Answer all questions. Question 1 (a) Mention any one significant difference between each of the following: (i) Electrophoresis and electroporation. (ii) Glucose and fructose. [5] (iii) Crystallography and centrifugation. (iv) Shuttle vectors and expression vector. (v) Gene and genome. (b) Answer the following questions: [5] (i) What type of plants are obtained by distant hybridization? (ii) What is the role of Eco R1 in genetic engineering? (iii) Why is the amino acid valine said to be optically active? (iv) Who proposed the one gene one enzyme hypothesis? (v) Why was the bacteria E. Coli chosen for genome sequencing projects? ------------------------------------------------------------------------------------------------------------------------- Copyright reserved. 1 ISC SPECIMEN QUESTION PAPER - 2017

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