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Class 10 CBSE 10th Board 2013 : Science

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Surendran Mokeri
Indira Gandhi Public School
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Model Question Paper for Class XII Biology MCQs Mark 01 Tick the correct statement 1. 2. 3. 4. 5. What would happen if corpus luteum is not degenerated (a) Progesterone will not be secreted (b) Endometrium will disintegrate (c) Proliferation of endometrium will take place (d) Ovulation will take place Klinefelten syndrome has the genetic make up (a) 44 autosomes + xxy (b) 44 autosomes + xo (c) 45 autosomes + xx (d) 45 autosomes + xy Cleistogamous flowers are invariably autogamous because (a) These flowers do not open at all. (b) There is no chance of cross pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated. Which of the following statements is correct (a) Surgical methods of contraception does not prevent gamete formation (b) In E.T techniques, embryos are always transferred into the uterus (c) Oral pills are very popular contraceptives among the rural women (d) All STDs are not completely curable. Non coding sequences present within a gene is called: (a) Exon (b) Operon (c) Promoter (d) Intron 1

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