{"id":4896,"date":"2017-07-24T17:20:53","date_gmt":"2017-07-24T11:50:53","guid":{"rendered":"http:\/\/blog.forumias.com\/?p=4896"},"modified":"2017-08-01T15:39:41","modified_gmt":"2017-08-01T10:09:41","slug":"upsc-mains-2017-botany-optional-test-1-mains-marathon","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/upsc-mains-2017-botany-optional-test-1-mains-marathon\/","title":{"rendered":"UPSC Mains 2017 Botany Optional \u2013 Test 1 : Mains Marathon"},"content":{"rendered":"

Archives<\/a> <\/strong><\/p>\n

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Friends, Here is the 1st Mains Marathon Botany Optional Test.<\/p>\n

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Below are the Questions<\/span><\/strong>:<\/p>\n

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Paper 2:<\/p>\n

Section A<\/strong> Topics: Cell biology, genetics, molecular biology, evolution, plant breeding, biotechnology, bio-statics<\/strong>.<\/p>\n

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Question 1<\/strong>: Explain the following: (10 mark each)<\/p>\n

a) What is the reason of inheritance pattern of petile mutants of baker\u2019s yeast, Saccharomyces cerevisiae<\/em>?<\/p>\n

b) Why the formations of one chiasma reduce the probability of another chiasma formation in an immediately adjacent region of the chromosomes?<\/p>\n

c) cAMP and protein kinase A.<\/p>\n

d) Cot curve.<\/p>\n

e) DNA\/ Molecular markers.<\/p>\n

f) Germplasm.<\/p>\n

g) Homologous genes.<\/p>\n

Question 2<\/strong>: The cell cycle is a highly regulated and a dependent series of events, explain that regulatory mechanism of cell cycle? (15 mark).<\/p>\n

Question 3<\/strong>: What are the various sources of insect resistance in crop plants and discuss their importance in breeding for insect resistance?(15 mark).<\/p>\n

Question 4<\/strong>: How the genetic resistance is the most desirable and useful method of controlling a pest? (15 mark).<\/p>\n

Question 5<\/strong>: What is coevolution and when it is likely to happen. Discuss. Explain a classic case of coevolution. (15 mark).<\/p>\n

Question 6<\/strong>: With the suitable example discuss the application and limitations of allopolyploidy. (15 mark).<\/p>\n

Question 7<\/strong>: Discuss the SiRNAs mediated RNAi and miRNAs mediated RNAi.(15 mark).<\/p>\n

Question 8<\/strong>: Discuss the Acetylation and Methylation types of chemical modifications of the Histone proteins. (15 mark).<\/p>\n

Question 9<\/strong>: what is the difference between sex-limited traits and sex- influenced traits?(15 mark).<\/p>\n

Question 10<\/strong>: In identification of cells containing the vector molecule requires the presence of suitable marker genes on the vector molecules whose expression provides a means of identifying a cell containing it,what are those two popularly used marker genes?(15 mark).<\/p>\n

Question 11<\/strong>: Why \u2018Ti plasmid based vector\u2019 are mostly used in plants for the purpose of cloning and expression of a target DNA fragments into a host cell?(15 mark).<\/p>\n

Question 12<\/strong>: What is polymerase chain reaction (PCR)? Discuss the different modifications to the PCR techniques? (15 mark).<\/p>\n

Question 13<\/strong>: What is gene interaction? Explain the different forms of gens interaction?(15 mark).<\/p>\n

Question14<\/strong>: Discuss the genetic mapping with suitable example. What are the major aspects of genetic mapping?(15 mark).<\/p>\n

Question15<\/strong>: Explain the four types of chromosome aberrations: deletions, duplications, inversions, and translocations?(15 mark).<\/p>\n

Question 16<\/strong>: What are the factors, which disturb the Hardy- Weinberger equilibrium in a Mendelian population and briefly describe their effects? (15 mark).<\/p>\n

Question 17<\/strong>: What are the objectives of plant breeding?(15 mark).<\/p>\n

Question 18<\/strong>: What is the genetic erosion? What are the main causes of genetic erosion?(15 mark).<\/p>\n

Question 19<\/strong>: Explain the genetics of apomixes and discuss its usefulness in plant breeding?(15 mark)<\/p>\n

Question 20<\/strong>: Explain the transports mechanism of different molecules across the plasma membrane. Explain?(15 mark).<\/p>\n

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All Mains Marathon Optional Questions will be updated in this page<\/strong><\/a>.<\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

Archives Friends, Here is the 1st Mains Marathon Botany Optional Test. Below are the Questions: Paper 2: Section A Topics: Cell biology, genetics, molecular biology, evolution, plant breeding, biotechnology, bio-statics. Question 1: Explain the following: (10 mark each) a) What is the reason of inheritance pattern of petile mutants of baker\u2019s yeast, Saccharomyces cerevisiae? b)… Continue reading UPSC Mains 2017 Botany Optional \u2013 Test 1 : Mains Marathon<\/span><\/a><\/p>\n","protected":false},"author":61,"featured_media":4480,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[104,9],"tags":[],"class_list":["post-4896","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-botany","category-public","entry"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2017\/07\/answer-writing-optional.jpg?fit=1000%2C500&ssl=1","views":{"total":330,"cached_at":""},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/4896","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/61"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=4896"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/4896\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media\/4480"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=4896"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=4896"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=4896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}