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ICSE Class X Sample / Model Paper 2018 : Biology

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Pyush Parmar
Progressive Education (II) School, Indore

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Name: Progressive Education IV First Review-July 2018 Grade: 10 Subject: Biology ______________________________________________ Date: ______________________ Day: ___________________ M.M- 25 Marks obtained: Grade: Examiner's Sign: ______________________ ________________________________________________________________________ I. Choose the correct answer:- (6) Q 1. Cells divides for a. Growth b. Replacing dead cells c. Repairing tissues d. All of the above Q2. For the growth & development of body a specific type of cells divide which is known as a. Nerve cells b. Somatic cells c. Reproductive cell d. None of the above Q 3. Identity of cell or genetic material is enclosed in a. Nucleus of the cell b. Cytoplasm of the cell c. Both a & b d. None of the above Q 4. We prepare for exam & that period is known as preparation phase, but when cell want to divide it will go for? a. karyokinnesis b. Interphase c. Mitosis d. None of the above Q5. Humans have 23 pairs of chromosomes out of which 22 pairs of chromosomes are known as a. Sex chromosomes b. Autosomes c. Y chromosomes d. None of the above Q 6. Female contains XX chromosomes & male XY chromosomes. Which of these can be called heterogametic a. XX chromosome b. XY chromosome c. Both a & b d. None of the above .II Give answers of the following questions A. what are genes? What are they composed of ? (2) B. Explain how meiosis give rise to variation?? (3) C. Why chromosomes are referred to as heredity vehicles? (3) D. Give significance of meiotic cell division (any three points). (3) E. Write difference between Autosomes & Sex chromsomes? (2) F. Write difference between: (i). Prophase & Metaphase (ii). Anaphase & Telophase G. Write about the following process. (3)

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