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ISC Class XII Board Exam 2019 : Biotechnology Paper 1 (Theory)

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ISC 12th
Indian School Certificate Examination (ISC), New Delhi
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BIOTECHNOLOGY PAPER 1 (THEORY) (Maximum Marks: 70) (Time allowed: Three hours) (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) (ii) [5] Anticodon and codon Intrinsic fluorescence and extrinsic fluorescence (iii) Introns and Exons (iv) Genomic DNA library and cDNA library (v) RAM and ROM (b) Answer the following questions: Which amino acid is optically inactive and why? (i) (ii) What is meant by exponential phase? (iii) What are designer oils? (iv) (v) (c) [5] What is palindromic sequence? Which substance is used in diploidization of haploid plants? Write the full form of each of the following: (i) NBRI (ii) NBTB [5] (iii) BLAST (iv) PIR (v) YAC --------------------------------------------------------------------------------------------------------------------This paper consists of 4 printed pages. 1219-878A Copyright reserved. Turn over

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