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ISC Class XII Board Specimen 2018 : Biology Paper 1 (Theory)

5 pages, 46 questions, 31 questions with responses, 33 total responses,    0    0
ISC 12th
Indian School Certificate Examination (ISC), New Delhi
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BIOLOGY 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) ------------------------------------------------------------------------------------------------------------------------------This paper comprises of TWO PARTS Part I and Part II. Answer all questions. Part I contains twenty questions of one mark each. Part II consists of Section A, B & C. Section A contains seven questions of two marks each Section B contains seven questions of three marks each, and Section C contains three questions of five marks each. Internal choices have been provided in two questions in Section A, two questions in Section B and in all three questions of Section C. ------------------------------------------------------------------------------------------------------------------------------PART I (20 Marks) Answer all questions. Question 1 (a) Answer the following questions briefly and to the point: (i) Name the most common motile spore of fungi. (ii) State the chromosome number in the endosperm of onion. (iii) Give the use of test cross. (iv) Mention the use of Lactobacillus. (v) What will happen if a child does not get colostrum in his early childhood? (vi) What is the shape of the pyramid of number in a single tree ecosystem? (vii) What is the biological significance of golden rice production? [8 1] (viii) Bt crops are resistant to pests. Name the gene responsible for pest resistance. ---------------------------------------------------------------------------------------------------------------------------1 ISC SPECIMEN QUESTION PAPER 2018

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