{"id":9528,"date":"2025-02-07T12:49:06","date_gmt":"2025-02-07T07:19:06","guid":{"rendered":"https:\/\/physicscatalyst.com\/article\/?p=9528"},"modified":"2025-02-07T12:49:12","modified_gmt":"2025-02-07T07:19:12","slug":"principles-of-inheritance-and-variations-molecular-basis-of-inheritance-and-evolution-mcq","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/article\/principles-of-inheritance-and-variations-molecular-basis-of-inheritance-and-evolution-mcq\/","title":{"rendered":"Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution MCQ"},"content":{"rendered":"\n<p>This post contains the MCQ for the three chapters Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution in Class 12 Biology<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Multiple Choice Questions<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Among the given groups of characters identify the group with recessive characters only.<br>a. Dwarf, white flower at terminal position<br>b. Dwarf, white flower at axial positions<br>c. Dwarf, violet colour of flower<br>d. Smooth and yellow seeds, terminal flowers<\/li>\n\n\n\n<li>In humans the possible genotypes for blood groups are<br>a. Three<br>b. Six<br>c. Four<br>d. Ninne<\/li>\n\n\n\n<li>In a DNA molecule, the adenine is found to be 19%. The amount of cytosine will be<br>a. 19%<br>b. 31%<br>c. 62%<br>d. 81%<\/li>\n\n\n\n<li>Test cross involves<br>a. Crossing between two dominant traits<br>b. Crossing between two recessive traits<br>c. Crossing between two F1 hybrids<br>d. Crossing the dominant with the double recessive parent<\/li>\n\n\n\n<li>The non disjunction of 21st pair of autosomal chromosome leads to<br>a. Sickle Cell anaemia<br>b. Klinefelter&#8217;s syndrome<br>c. Turner syndrome<br>d. Down syndrome<\/li>\n\n\n\n<li>Wings of butterfly and birds are<br>a. anatomically similar and perform similar function<br>b. show analogy and divergent evolution<br>c. anatomically different and show convergent evolution<br>d. show homology and divergent evolution<\/li>\n\n\n\n<li>Similar genotypic and phenotypic ratio is obtained in<br>a. incomplete dominance<br>b. independent assortment<br>c. complete dominance<br>d. quantitative inheritance<\/li>\n\n\n\n<li>Placental Wolf and Tasmanian wolf show phenomenon<br>a. convergent evolution<br>b. alalogy<br>c. adaptive radiation<br>d. artificial selection<\/li>\n\n\n\n<li>The specific event and its probable time of occurrence is given below in mya. Find the incorrect match<br>a. 500 mya- Evolution of invertebrates<br>b. 2000 mya- First cellular form of life<br>c. 350 mya- Evolution of jawless fishes<br>d. 450 mya- Evolution of sea weeds and some plants<\/li>\n\n\n\n<li>The main DNA synthesizing enzyme is<br>a. DNA dependent DNA polymerase<br>b. DNA dependent RNA polymerase<br>c. RNA dependent DNA polymerase<br>d. primase<\/li>\n\n\n\n<li>In a growth medium for E. coli, lactose is added in the medium. The lactose is transported into bacteria by<br>a. beta galactosidase<br>b. permease<br>c. transacetylase<br>d. repressor<\/li>\n\n\n\n<li>The fish like reptiles Ichthyosaurs evolved around<br>a. 250 mya<br>b. 350 mya<br>c. 100 mys<br>d. 50 mya<\/li>\n\n\n\n<li>Genetic disorder Turner&#8217;s syndrome is caused due to<br>a. 45 autosomes and normal sex chromosomes<br>b. 44 autosomes and sex chromosome aneuploidy<br>c. 45 autosomes and abnormal sex chromosomes<br>d. 44 Autosomes and absence of one X chromosome<\/li>\n\n\n\n<li>The mixture taken by Miller in his experiment to prove chemical evolution was<br>a. H2, O2, NH3 and H2O<br>b. CH4, CN, H2 and O2,<br>c. H2, CH4, NH3, and water vapour<br>d. CH4, NH3 and O2<\/li>\n\n\n\n<li>Which of the following unit is the largest among all<br>a. Nucleotide<br>b. Nucleoside<br>c. Pyrimidines<br>d. Purined<\/li>\n\n\n\n<li>The female heterogamety is a common method of sex determination in<br>a. Human beings<br>b. Drosophila<br>c. Grasshopper<br>d. Birds<\/li>\n\n\n\n<li>Following four statements are given about the characteristics of genetic material. Makecorrect choice of statement.<br>I. Genetic material has the ability of self duplication<br>II. Genetic material does not express itself<br>III. Genetic material is very stable and does not change<br>IV. Genetic material stores information to control cellular function<\/li>\n<\/ol>\n\n\n\n<p class=\"has-text-align-left\">a. I and III are correct<br>b. I and IV are correct<br>c. II and III are correct<br>d. II and IV are correct<\/p>\n\n\n\n<ol start=\"18\" class=\"wp-block-list\">\n<li>Which of the following statements are correct only?<br>I. RNA polymerase I transcribes rRNAs.<br>II. RNA polymerase II transcribes snRNAs.<br>III. RNa polymerase III transcribes hnRNA.<br>IV. RNA polymerase II transcribes hnRNA.<br>a. I and II only<br>b. I and III only<br>c. I, II and IV only<br>d. I and IV only<\/li>\n\n\n\n<li>DNA fingerprinting is based on identifying specific<br>a. Promoters<br>b. Coding sequences<br>c. Non-coding sequences<br>d. Both (b) and (c )<\/li>\n\n\n\n<li>Which of the following can be used in DNA fingerprinting?<br>a. Blood<br>b. Hair follicle<br>c. Saliva<br>d. All of these<\/li>\n\n\n\n<li>Pleitropy occurs when a gene has<br>a. a complementary gene elsewhere<br>b. a small effect on one trait<br>c. reversible effects on the phenotype, depending on age<br>d. many effects on the phenotype<\/li>\n\n\n\n<li>A child&#8217;s blood group is &#8216;O&#8217;Brien. The parent&#8217;s blood groups cannot be<br>a. AB<br>b. A and B<br>c. B and O<br>d. A and A<\/li>\n\n\n\n<li>The distance between two genes in a chromosome is measured in cross over unit, which represent<br>a. rate of crossing over that occurs between them<br>b. number of crossing over that occurs between them<br>c. percentage of crossing over that occurs between them<br>d. rate by bivalent formation<\/li>\n\n\n\n<li>Haemophilia is more commonly seen in human males than in human females because<br>a. a greater proportion of girls die in infancy.<br>b. this disease is due to a Y-linked recessive mutation.<br>c. this disease is due to an X-linked recessive mutation.<br>d. this disease is due to an X-linked dominant mutation.<\/li>\n\n\n\n<li>X-chromosome of females in a sex- linked inheritance case can be passed on to<br>a. Only female progeny<br>b. only male progeny<br>c. only in grand daughter<br>d. male and female progeny<\/li>\n<\/ol>\n\n\n\n<p><strong>Answersheet<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>a<\/li>\n\n\n\n<li>b<\/li>\n\n\n\n<li>b<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>a<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>a<\/li>\n\n\n\n<li>b<\/li>\n\n\n\n<li>a<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>a<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>b<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>d<\/li>\n\n\n\n<li>a<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>c<\/li>\n\n\n\n<li>d<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>This post contains the MCQ for the three chapters Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution in Class 12 Biology Multiple Choice Questions a. I and III are correctb. I and IV are correctc. II and III are correctd. II and IV are correct Answersheet<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[518],"tags":[],"class_list":["post-9528","post","type-post","status-publish","format-standard","hentry","category-biology"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution MCQ - physicscatalyst&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/physicscatalyst.com\/article\/principles-of-inheritance-and-variations-molecular-basis-of-inheritance-and-evolution-mcq\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution MCQ - physicscatalyst&#039;s Blog\" \/>\n<meta property=\"og:description\" content=\"This post contains the MCQ for the three chapters Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution in Class 12 Biology Multiple Choice Questions a. 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I and III are correctb. I and IV are correctc. II and III are correctd. II and IV are correct Answersheet","_links":{"self":[{"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/posts\/9528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/comments?post=9528"}],"version-history":[{"count":2,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/posts\/9528\/revisions"}],"predecessor-version":[{"id":9530,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/posts\/9528\/revisions\/9530"}],"wp:attachment":[{"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/media?parent=9528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/categories?post=9528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/physicscatalyst.com\/article\/wp-json\/wp\/v2\/tags?post=9528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}