{"id":22430,"date":"2018-11-29T10:14:41","date_gmt":"2018-11-29T04:44:41","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/?p=22430"},"modified":"2018-12-17T12:48:46","modified_gmt":"2018-12-17T07:18:46","slug":"cbse-question-paper-2009-class-12-biology","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/","title":{"rendered":"CBSE Question Paper 2009 class 12 Biology"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#Class_12_Biology_list_of_chapters\" >Class 12 Biology list of chapters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#CBSE_Question_Paper_2009_class_12_Biology\" >CBSE Question Paper 2009 class 12 Biology<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#General_Instructions\" >General Instructions:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#SECTION_%E2%80%93_A\" >SECTION \u2013 A<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#SECTION_%E2%80%93_B\" >SECTION \u2013 B<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#OR\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#SECTION_%E2%80%93_C\" >SECTION \u2013 C<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#OR-2\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#SECTION_%E2%80%93_D\" >SECTION \u2013 D<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#OR-3\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#OR-4\" >OR<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#OR-5\" >OR<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#Last_Year_Question_Paper_Class_12_Biology_2009\" >Last Year Question Paper Class 12 Biology 2009<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/#Previous_Year_Question_Paper_for_class_12_in_PDF\" >Previous Year Question Paper for class 12 in PDF<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>CBSE Question Paper 2009 class 12 Biology<\/strong>\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2009. CBSE previous year question papers with solution are available in myCBSEguide mobile app and cbse guide website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice papers to cbse schools in India and abroad.<\/p>\n<p style=\"text-align: center;\"><strong>CBSE Question Paper 2009 class 12 Biology\u00a0<\/strong><\/p>\n<p style=\"text-align: center;\"><strong><a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-biology\/1298\/cbse-last-year-papers\/3\/\">Download as PDF<\/a><\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" src=\"https:\/\/media-mycbseguide.s3.ap-south-1.amazonaws.com\/images\/blog\/12%20biology%20book.jpg\" alt=\"CBSE Question Paper 2009 class 12 Biology\" width=\"128\" height=\"159\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Class_12_Biology_list_of_chapters\"><\/span>Class 12 Biology list of chapters<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li>Reproduction in Organisms<\/li>\n<li>Sexual Reproduction in Flowering Plants<\/li>\n<li>Human Reproduction<\/li>\n<li>Reproductive Health<\/li>\n<li>Principles of Inheritance and Variation<\/li>\n<li>Molecular Basis of Inheritance<\/li>\n<li>Evolution<\/li>\n<li>Human Health and Disease<\/li>\n<li>Strategies for Enhancement in Food Production<\/li>\n<li>Microbes in Human Welfare<\/li>\n<li>Biotechnology Principles and Processes<\/li>\n<li>Biotechnology and its Applications<\/li>\n<li>Organisms and Populations<\/li>\n<li>Ecosystem<\/li>\n<li>Biodiversity and Conservation<\/li>\n<li>Environmental Issues<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Question_Paper_2009_class_12_Biology\"><\/span>CBSE Question Paper 2009 class 12 Biology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>\n<h3><span class=\"ez-toc-section\" id=\"General_Instructions\"><\/span><strong>General Instructions:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol>\n<li>All questions are compulsory<\/li>\n<li>This question paper consist of section A, B, C and D. A contain 8 questions of one mark each, section B is of 10 questions of two marks each, section C is of 9 questions of three marks each and section D is of 3 questions of five marks each.<\/li>\n<li>There is no overall choice. however, an internal choice has been provided in one question of 2 marks., one question of 3 marks and two questions of 5 marks weight age. a student has to attempt only one of the alternatives is such questions.<\/li>\n<li>Whenever necessary, the diagram draw should be neat and properly labeled.<\/li>\n<\/ol>\n<hr \/>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"SECTION_%E2%80%93_A\"><\/span><strong>SECTION \u2013 A<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Q1. The microscopic pollen grains of the past are obtained as fossils. Mention the characteristic of the pollen grains that makes it happen.<\/p>\n<p>Q2.<br \/>\n<img decoding=\"async\" id=\"Picture 1\" style=\"height: 140px; width: 229px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image001.png\" \/><br \/>\nName the unlabelled areas \u2018a\u2019 and \u2018b\u2019 of the pie chart (given above) representing the global biodiversity of invertebrates shoeing their proportionate number of species of major taxa.<\/p>\n<p>Q3. Some allergens trigger sneezing and wheezing in human beings. What causes this type of response by the body?<\/p>\n<p>Q4. Name the group of organisms and the substrate they act on to produce biogas.<\/p>\n<p>Q5. Are the thorn of Bougainvillea and tendril of Cucurbita homologous or analogous? What type of evolution has brought such a similarity in them?<\/p>\n<p>Q6. Mention the two additional processing which hnRNA needs to undergo after splicing so as to become functional.<\/p>\n<p>Q7. Mention the pollinating agent of an inflorescence of small dull coloured flowers with well-exposed stamens and large feathery stigma. Give any one characteristic of pollen grains produced by such flowers.<\/p>\n<p>Q8. Which of the following is a free-living bacteria that can fix nitrogen in the soil?<br \/>\nSpirulina, Azospirillum, Somalia<\/p>\n<hr \/>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"SECTION_%E2%80%93_B\"><\/span><strong>SECTION \u2013 B<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Q9.<br \/>\n<img decoding=\"async\" id=\"Picture 2\" style=\"height: 140px; width: 185px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image002.png\" \/><br \/>\n(i) What does the above diagram illustrate?<br \/>\n(ii) Name the parts labeled \u2018a\u2019 and \u2018b\u2019.<br \/>\n(iii) Name the type of cells that produce this molecule.<\/p>\n<p>Q10. Name the muscular and the glandular layers of human uterus. Which one of these layers undergoes cyclic changes during menstrual cycle? Name the hormone essential for the maintenance of this layer.<\/p>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"OR\"><\/span><strong>OR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Name the hormonal composition of the oral contraceptive used by human females. Explain how does it act as contraceptive.<\/p>\n<p>Q11. Explain accelerated eutrophication. Mention any two consequences of this phenomenon.<\/p>\n<p>Q12. Study the figure given below and answer the questions:<br \/>\n<img decoding=\"async\" id=\"Picture 3\" style=\"height: 146px; width: 280px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image003.png\" \/><br \/>\n(a) How does the repressor molecule get inactivated?<\/p>\n<p>(b) When does the transcription of lac mRNA stop?<\/p>\n<p>(c) Name the enzyme transcribed by the gene \u2018Z\u2019.<\/p>\n<p>Q13. Describe the responsibility of GEAC, set up by the Indian Government.<\/p>\n<p>Q14. (a) What is \u201cr\u201d in the population equation given below?<br \/>\ndN\/dt = rN<\/p>\n<p>(b) How does the increase and the decrease in the value of \u2018r\u2019 affect the population size?<\/p>\n<p>Q15. During the secondary treatment of the primary effluent how does the significant decrease in BOD occur?<\/p>\n<p>Q16. How is the translation of mRNA terminated? Explain.<\/p>\n<p>Q17. List the specific symptoms of amoebiasis. Name the causative organism.<\/p>\n<p>Q18. Explain the contribution of Thermus aquatics in the amplification of a gene of interest.<\/p>\n<hr \/>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"SECTION_%E2%80%93_C\"><\/span><strong>SECTION \u2013 C<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Q19. (a) Name the respective forms in which the malarial parasite gains entry into<br \/>\n(i) Human body and<br \/>\n(ii) Body of female Anopheles.<\/p>\n<p>(b) Name the hosts where the sexual and the asexual reproductions of malarial parasite occur respectively.<\/p>\n<p>(c) Name the toxin responsible for the appearance of symptoms of malarial in humans. Why do these symptoms occur periodically?<\/p>\n<p>Q20.<br \/>\n<img decoding=\"async\" id=\"Picture 4\" style=\"height: 150px; width: 228px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image007.png\" \/><br \/>\n(a) Identify the selectable markers in the diagram of E. coli vector shown above.<br \/>\n(b) How is the coding sequence of <em>\u03b1<\/em>\u03b1 &#8211; galactosidase considered a better marker than the ones identified by you in the diagram? Explain.<\/p>\n<p>Q21. Haemophilia is a sex lined recessive disorder of humans. The pedigree chart given below shows the inheritance of haemophilia in one family. Study the pattern of inheritance and answer the questions given.<br \/>\n<img decoding=\"async\" id=\"Picture 4\" style=\"height: 120px; width: 300px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image004.png\" \/><\/p>\n<p>(a) Give all the possible genotypes of the members 4, 5 and 6 in the pedigree chart.<\/p>\n<p>(b) A blood test shows that the individual 14 is carrier of haemophilia. The member numbered 5 has recently married the member numbered 14. what is the probability that their first child will be a haemophilic male?<\/p>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"OR-2\"><\/span><strong>OR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Inheritance pattern of ABO blood groups in humans shows dominance, codominance and multiple allelism. Explain each concept with the help of blood group genotypes.<\/p>\n<p>Q22. Construct an ideal pyramid of energy when 1, 000, 000 joules of sunlight is available. Label all its\u00a0tropic levels.<\/p>\n<p>Q23. Study the figure given below and answer the questions that follow:<br \/>\n<img decoding=\"async\" id=\"Picture 5\" style=\"height: 100px; width: 180px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image005.png\" \/><br \/>\n(a) Name the stage of human embryo the figure represents.<br \/>\n(b) Identify \u2018a\u2019 in the figure and mention its function.<br \/>\n(c) Mention the fate of the inner cell mass after implantation in the uterus.<br \/>\n(d) Where are the stem cells located in this embryo?<\/p>\n<p>Q24. Explain the causes of global warming. Why is it a warning to mankind?<\/p>\n<p>Q25.<br \/>\n<img decoding=\"async\" id=\"Picture 6\" style=\"height: 220px; width: 381px;\" src=\"https:\/\/media-mycbseguide.s3.amazonaws.com\/images\/static\/lyp\/12\/bio\/2009\/set1\/image006.png\" \/><\/p>\n<p>(a) Mention the specific geographical region where these organisms are found.<\/p>\n<p>(b) Name and explain the phenomenon that has resulted in the evolution of such diverse species in the region.<\/p>\n<p>(c) Explain given reasons the existence of placental wolf and Tasmanian wolf sharing the same habitat.<\/p>\n<p>Q26. Draw a labeled schematic sketch of replication fork of DNA. Explain the role of the enzymes involved in DNA replication.<\/p>\n<p>Q27. Name the pioneer species on a bare rock. How do they help in establishing the next type of vegetation? Mention the type of climax community that will ultimately get established.<\/p>\n<hr \/>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"SECTION_%E2%80%93_D\"><\/span><strong>SECTION \u2013 D<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Q28. (a) What did Meselson and Stahl observe when<br \/>\n(i) They cultured E. coil in medium containing 15NH4Cl for a few generations and centrifuged the content.<br \/>\n(ii) They transferred one such bacterium to the normal medium of NH4Cl and cultured for 2 generations?<\/p>\n<p>(b) What did Meselson and Stahl conclude from this experiment? Explain with the help of diagrams.<\/p>\n<p>(c) Which is the first genetic material? Give reasons in support of your answer.<\/p>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"OR-3\"><\/span><strong>OR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>You are given a red flower \u2013 bearing pea plant and a red flower bearing snapdragon plant. How would you find the genotypes of these two plants with respect to the colour of the flower? Explain the help of crosses. Comment upon the pattern of inheritance seen in these two plants.<\/p>\n<p>Q29. (a) Draw a labeled diagram of a mature embryo sac.<br \/>\n(b) Why does a pollen grain posses two male gametes? Explain.<\/p>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"OR-4\"><\/span>OR<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>(a) Draw a schematic diagram of a human sperm and label the cellular components. Give the functions of any three parts.<br \/>\n(b) Where are the sperm heads found embedded to survive after spermatogenesis?<\/p>\n<p>Q30. One of the main objectives of biotechnology is to minimize the use of insecticides on cultivated crops. Explain with the help of a suitable example how insect-resistant crops have been developed using techniques of biotechnology.<\/p>\n<h3 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"OR-5\"><\/span><strong>OR<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>(a) How is mature insulin different from proinsulin secreted by pancreas in humans?<br \/>\n(b) Explain how was human functional insulin produced using rDNA technology.<br \/>\n(c) Why is the functional insulin thus produced considered better than the ones used earlier by diabetic patents?<\/p>\n<div>\n<p style=\"text-align: center;\"><strong>These are questions only. To view and download complete question paper with solution install myCBSEguide App from google play store or login to our\u00a0<a href=\"https:\/\/mycbseguide.com\/dashboard\/\">student dashboard<\/a>.<\/strong><\/p>\n<p style=\"text-align: center;\"><b><strong><a class=\"button\" href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\">Download myCBSEguide App<\/a><\/strong><\/b><\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Last_Year_Question_Paper_Class_12_Biology_2009\"><\/span>Last Year Question Paper Class 12 Biology 2009<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Download class 12 Biology question paper with solution from best CBSE App the myCBSEguide. CBSE class 12 Biology question paper 2009 in PDF format with solution will help you to understand the latest question paper pattern and marking scheme of the CBSE board examination. You will get to know the difficulty level of the question paper.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Previous_Year_Question_Paper_for_class_12_in_PDF\"><\/span>Previous Year Question Paper for class 12 in PDF<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CBSE question papers 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005 and so on for all the subjects are available under this download link. Practicing real question paper certainly helps students to get confidence and improve performance in weak areas.<\/p>\n<ul>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physics\/1251\/cbse-last-year-papers\/3\/\">Physics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-chemistry\/1267\/cbse-last-year-papers\/3\/\">Chemistry<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-mathematics\/1284\/cbse-last-year-papers\/3\/\">Mathematics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-biology\/1298\/cbse-last-year-papers\/3\/\">Biology<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-accountancy\/1315\/cbse-last-year-papers\/3\/\">Accountancy<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-business-studies\/1727\/cbse-last-year-papers\/3\/\">Business Studies<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-economics\/1327\/cbse-last-year-papers\/3\/\">Economics<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-history\/1869\/cbse-last-year-papers\/3\/\">History<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-geography\/1863\/cbse-last-year-papers\/3\/\">Geography<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-political-science\/1879\/cbse-last-year-papers\/3\/\">Political Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-physical-education\/1877\/cbse-last-year-papers\/3\/\">Physical Education<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-computer-science\/1851\/cbse-last-year-papers\/3\/\">Computer Science<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-informatics-practices\/1873\/cbse-last-year-papers\/3\/\">Informatics Practices<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-english-core\/1855\/cbse-last-year-papers\/3\/\">English Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-core\/1865\/cbse-last-year-papers\/3\/\">Hindi Core<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12-hindi-elective\/1867\/cbse-last-year-papers\/3\/\">Hindi Elective<\/a><\/li>\n<li><a href=\"http:\/\/mycbseguide.com\/downloads\/cbse-class-12\/1250\/\">Other Subjects<\/a><\/li>\n<\/ul>\n<p>To download CBSE Question Paper class 12 Biology, Chemistry, Physics, History, Political Science, Economics, Geography, Computer Science, Home Science, Accountancy, Business Studies and Home Science; do check myCBSEguide app or website. myCBSEguide provides sample papers with solution, test papers for chapter-wise practice, NCERT solutions, NCERT Exemplar solutions, quick revision notes for ready reference, CBSE guess papers and CBSE important question papers. Sample Paper all are made available through\u00a0<a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.techchefs.MyCBSEGuide&amp;referrer=utm_source%3Dmycbse_bottom%26utm_medium%3Dtext%26utm_campaign%3Dmycbseads\"><strong>the best app for CBSE students<\/strong><\/a>\u00a0and myCBSEguide website.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>CBSE Question Paper 2009 class 12 Biology\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2009. CBSE previous year question papers with solution are available in myCBSEguide mobile app and cbse guide website. The Best CBSE App for students and teachers is myCBSEguide which provides complete study material and practice &#8230; <a title=\"CBSE Question Paper 2009 class 12 Biology\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2009-class-12-biology\/\" aria-label=\"More on CBSE Question Paper 2009 class 12 Biology\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1435,1346,1014],"tags":[276,1527,1342,80,1566,1569],"class_list":["post-22430","post","type-post","status-publish","format-standard","hentry","category-biology-cbse-class-12","category-cbse","category-cbse-question-papers","tag-biology","tag-cbse-question-paper","tag-class-12","tag-last-year-papers","tag-previous-question-paper","tag-ten-year-questions-paper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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