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VIBGYOR HIGH Semester-1 Preliminary Examination AY 2021-2022 BIOLOGY Grade: X Max. Marks : 40 Date : 27/09/2021 Time Allowed: 1 hour INSTRUCTIONS: Time allowed: One hour (inclusive of reading time) ALL QUESTIONS ARE COMPULSORY The marks intended for questions are given in brackets [ ]. _________________________________________________________________________ Select the correct option for each of the following questions. SECTION I (15 Marks) Question 1 (a) Name the following by choosing the correct option: A cross between two individuals with one pair of contrasting characters. 1. Crossing over 2. Monohybrid cross 3. Dihybrid cross 4. Self fertilization (b) The apparatus used to measure the rate of water intake by a plant. 1. Bell jar method 2. Ganong s Potometer 3. Ganong s photometer 4. Weighing method (c) The stage of mitosis in which nuclear membrane and nucleoli reappears. 1. Prophase 2. Metaphase 3. Telophase 4. Anaphase 1 [5]
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