{"id":23329,"date":"2018-12-10T17:19:58","date_gmt":"2018-12-10T11:49:58","guid":{"rendered":"http:\/\/mycbseguide.com\/blog\/?p=23329"},"modified":"2018-12-17T11:18:07","modified_gmt":"2018-12-17T05:48:07","slug":"cbse-question-paper-2017-class-12-biotechnology","status":"publish","type":"post","link":"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/","title":{"rendered":"CBSE Question Paper 2017 class 12 Biotechnology"},"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-2017-class-12-biotechnology\/#Last_Year_Question_Paper_Class_12_Biotechnology_2017\" >Last Year Question Paper Class 12 Biotechnology 2017<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#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-3\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#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-4\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#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-5\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#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-6\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#Section_%E2%80%93_D\" >Section \u2013 D<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#CBSE_Question_Paper_2017_class_12_Biotechnology\" >CBSE Question Paper 2017 class 12 Biotechnology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/#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 2017 class 12 Biotechnology<\/strong>\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2017. 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 2017 class 12 Biotechnology<\/strong><\/p>\n<p style=\"text-align: center;\"><strong><a class=\"button\" href=\"https:\/\/mycbseguide.com\/downloads\/cbse-class-12-biotechnology\/1849\/cbse-last-year-papers\/3\/\">Download as PDF<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Last_Year_Question_Paper_Class_12_Biotechnology_2017\"><\/span>Last Year Question Paper Class 12 Biotechnology 2017<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"General_Instructions\"><\/span><strong>General Instructions :<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>All questions are compulsory.<\/li>\n<li>There is no overall choice. However, an internal choice has been provided in questions of three marks and five marks each. You have to attempt only one of the choices in such questions. Question paper contains four sections A, B, C, and D.<\/li>\n<li>1 to 6 is very short answer questions, carrying 1 mark each.<\/li>\n<li>7 to 14 are short answer questions, carrying 2 marks each.<\/li>\n<li>15 to 25 are also short answer questions, carrying 3 marks each.<\/li>\n<li>26 to 28 are long answer questions, carrying 5 marks each.<\/li>\n<li>Use of calculators is not permitted. However, you may use log tables, if necessary.<\/li>\n<\/ul>\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>1. For measuring microbial growth, viable plate count is preferred over absorbance of cell suspension in a spectrophotometer. Why?<\/p>\n<p>2.\u00a0 Can haploid plants be converted to diploid? How?<\/p>\n<p>3.\u00a0 How does Herceptin work to treat early stage breast cancer?<\/p>\n<p>4.\u00a0 What is \u2018contact inhibition\u2019?<\/p>\n<p>5.\u00a0 Among the biomolecules, proteins have maximum functional diversity. Why?<\/p>\n<p>6. c-DNA library contains information about expressed genes only. Justify giving reason.<\/p>\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>7.\u00a0 What problems make the downstream processing of recombinant proteins difficult and costly?<\/p>\n<p>8. What are the essential components of a microbial growth media? Differentiate between synthetic and semi-synthetic medium used for microbial growth.<\/p>\n<p>9.\u00a0 Why is foaming undesirable in microbiological processes? Name two commonly used antifoams.<\/p>\n<p>10.\u00a0 Suggest two examples of genetic modification for improving nutritional quality in cereals.<\/p>\n<p>11.\u00a0 Enlist four defined steps of micropropagation in plants.<\/p>\n<p>12.\u00a0 Differentiate between zygotic and somatic embryos.<\/p>\n<p>13.\u00a0 Name any two databases commonly used in bioinformatics and the type of information available from each of these database.<\/p>\n<p>14.\u00a0 Why proteome of a given species is larger than its genome ? Give two reasons.<\/p>\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>15.\u00a0 Differentiate between Batch and Continuous culture.<\/p>\n<p>16.\u00a0 \u2018Edible vaccines are better than conventional vaccines or recombinant vaccines.\u2019 Give three reasons to support the statement.<\/p>\n<p>17.\u00a0 Athletes are disqualified if they test positive for erythropoietin (EPO). What is this substance? How does it act and under what condition body produces it?<\/p>\n<p>18. A technician in a tissue culture lab accidentally forgot to put tag on petri-dish containing cells from a cancer biopsy. Which features will help him to identify this petri-dish among the others containing normal cells?<\/p>\n<p>19.\u00a0 What is Molecular Pharming? What are the advantages of producing desired proteins by this method?<\/p>\n<p>20. (a) What precautions should be taken to maximize protein stability during its purification steps? (two only)<\/p>\n<p>(b) State two major factors which determine purification scheme for a given protein.<\/p>\n<p>21.\u00a0 Schematically indicate various steps of Southern hybridization technique<strong>.<\/strong><\/p>\n<p>22.\u00a0 Describe any three method to introduce \u2018Recombinant DNA\u2019 into host cells<strong>. <\/strong><\/p>\n<p style=\"text-align: center;\"><strong>OR<\/strong><\/p>\n<p>(a) Why viruses are considered as ideal vehicles to transfer foreign genes into eukaryotic cells in culture ? Give two reasons.<\/p>\n<p>(b) Differentiate between YAC and BAC vectors.<\/p>\n<p>23.\u00a0 Give one example and function of each of the following protein based products :<br \/>\n(a) Industrial enzyme\u00a0 (b) Regulatory factors\u00a0 (c) Analytical applications<\/p>\n<p>24. A CML patient has been put on a drug therapy for a month. How can FISH be used to monitor the effect of chemotherapy? What is the role of NICK translation in this process?<\/p>\n<p>25.\u00a0 (a) What is the role of DNA ligase and alkaline phosphatase in r-DNA technology?<br \/>\n(b) \u2018Co\u2019s sites are important sequences in the DNA of \u03bb-phage. Why?<\/p>\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>26.\u00a0 (a) Schematically illustrate the technique of \u2018site-directed mutagenesis\u2019<\/p>\n<p>(b) What physical and chemical properties of naturally occurring enzymes can be changed by site-directed mutagenesis?<\/p>\n<p style=\"text-align: center;\"><strong>OR<\/strong><\/p>\n<p>The PCR technique has great importance in modern biology. Briefly highlight the technique and suggest how it can be used to detect pathogenic microbes.<\/p>\n<p>27.(a) Describe the technique developed by O\u2019Farrel to compare similar proteins from different sources.<\/p>\n<p>(b) Who developed the technique of protein fingerprinting?<\/p>\n<p>28.\u00a0 (a) Expand NCBI. In a genome analysis, are \u2018in-silico\u2019 prediction methods for gene number accurate? Suggest any two reasons.<\/p>\n<p>(b) How is it useful to search a database to establish the identity of a newly determined DNA sequence?<\/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=\"CBSE_Question_Paper_2017_class_12_Biotechnology\"><\/span>CBSE Question Paper 2017 class 12 Biotechnology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Download class 12 Biotechnology question paper with solution from best CBSE App the myCBSEguide. CBSE class 12 Biotechnology question paper 2017 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 Accountancy, 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","protected":false},"excerpt":{"rendered":"<p>CBSE Question Paper 2017 class 12 Biotechnology\u00a0conducted by Central Board of Secondary Education, New Delhi in the month of March 2017. 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 2017 class 12 Biotechnology\" class=\"read-more\" href=\"https:\/\/mycbseguide.com\/blog\/cbse-question-paper-2017-class-12-biotechnology\/\" aria-label=\"More on CBSE Question Paper 2017 class 12 Biotechnology\">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":[1346,1014,1447],"tags":[345,1582,1527,1342,80,1631],"class_list":["post-23329","post","type-post","status-publish","format-standard","hentry","category-cbse","category-cbse-question-papers","category-other-subjects-cbse-class-12","tag-biotechnology","tag-cbse-previous-year-paper","tag-cbse-question-paper","tag-class-12","tag-last-year-papers","tag-ten-year-questions-papers"],"yoast_head":"<!-- This site is optimized with the 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