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CBSE Class 12 Pre Board 2020 : Biology (Kendriya Vidyalaya (KV) Agra)

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KENDRIYA VIDYALAYA SANGATHAN, AGRA REGION PRE BOARD EXAM -2019-20 CLASS XII SET H MAX.TIME 3 H SUB-BIOLOGY MAX MARKS -70 General Instructions :1. There are a total of 27 questions and five sections in the question paper. All questions are compulsory 2. Section A contains question numbers 1 to 5 ,multiple choice questions of one mark each. Section B contains question numbers 6 to 12, short answer type I questions of two marks each. Section C contains question numbers 13 to 21, short answer type II questions of 3 marks each . Section D contains question numbers 22 to 24, case based short answer type questions of three marks each. Section E contains question numbers 25 to 27, long answer type questions of five marks each. 3. There is no overall choice in the question paper. However internal choices are provided in two questions of one mark, one question of 2 marks, two questions of three marks and all the three questions of 5 marks . An examinee is to attempt any one of the questions out of the two given in the question paper with the same question number. -----------------------------------------------------------------------------------------------------------SECTION A 1. Which of the following statements is true of yeast: 1 a) Cell divides by binary fission; one of the daughter cell develops into a bud. b)Cell divides unequally; smaller cell develops into a bud. c)Cell produces conidia, which develop into a bud. d)Cell divides by meiosis, four haploid buds are produced. OR Which of the following will create genetic variation? a) b) c) d) 1 Geitonogamy Cleistogamy Autogamy Xenogamy 2. The bio fortified maize hybrid developed in the year 2000 was rich in which of the following two amino acids 1 a) Lysine and Arginine b) Arginine and tryptophan c) Lysine and tryptophan d) Glycine and tryptophan Page 1 of 8

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