{"id":215208,"date":"2025-05-16T13:26:55","date_gmt":"2025-05-16T13:26:55","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=215208"},"modified":"2025-05-16T13:26:57","modified_gmt":"2025-05-16T13:26:57","slug":"the-anticodon-of-a-particular-trna-molecule-is","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/16\/the-anticodon-of-a-particular-trna-molecule-is\/","title":{"rendered":"The anticodon of a particular tRNA molecule is"},"content":{"rendered":"\n<p>The anticodon of a particular tRNA molecule is<\/p>\n\n\n\n<p>(A) complementary to the corresponding mRNA codon.<br>(B) complementary to the corresponding triplet in rRNA.<br>(C) the part of tRNA that bonds to a specific amino acid.<br>(D) catalytic, making the tRNA a ribozyme.<br>Which of the following is not true of RNA processing?<\/p>\n\n\n\n<p>(A) Exons are cut out before mRNA leaves the nucleus.<br>(B) Nucleotides may be added at both ends of the RNA.<br>(C) Ribozymes may function in RNA splicing.<br>(D) RNA splicing can be catalyzed by spliceosomes.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is :<\/mark><\/strong><\/p>\n\n\n\n<p>Let&#8217;s address each multiple-choice question one by one:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Question 1:<\/strong><\/h3>\n\n\n\n<p><strong>The anticodon of a particular tRNA molecule is:<\/strong><\/p>\n\n\n\n<p><strong>Correct Answer: (A) complementary to the corresponding mRNA codon.<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Explanation:<\/strong><\/h4>\n\n\n\n<p>Transfer RNA (tRNA) plays a crucial role in translating the genetic code carried by messenger RNA (mRNA) into a specific sequence of amino acids to form a protein. Each tRNA molecule contains a specific <strong>anticodon<\/strong>, which is a sequence of <strong>three nucleotides<\/strong>. This anticodon is <strong>complementary<\/strong> to a codon on the mRNA strand.<\/p>\n\n\n\n<p>For example, if the mRNA codon is <strong>AUG<\/strong> (which codes for methionine), the corresponding tRNA anticodon would be <strong>UAC<\/strong>. This ensures that the correct amino acid (methionine, in this case) is brought to the ribosome during protein synthesis.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Option B<\/strong> is incorrect because tRNA anticodons interact with <strong>mRNA<\/strong>, not <strong>rRNA<\/strong>.<\/li>\n\n\n\n<li><strong>Option C<\/strong> is incorrect because the <strong>amino acid binding site<\/strong> is on the opposite end of the anticodon loop.<\/li>\n\n\n\n<li><strong>Option D<\/strong> is incorrect because tRNAs are <strong>not ribozymes<\/strong> (although some RNAs, like rRNA, can have catalytic activity).<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Question 2:<\/strong><\/h3>\n\n\n\n<p><strong>Which of the following is not true of RNA processing?<\/strong><\/p>\n\n\n\n<p><strong>Correct Answer: (A) Exons are cut out before mRNA leaves the nucleus.<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Explanation:<\/strong><\/h4>\n\n\n\n<p>During RNA processing in <strong>eukaryotic cells<\/strong>, the initial RNA transcript (pre-mRNA) undergoes several modifications before it becomes mature mRNA ready for translation:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Introns<\/strong>, which are non-coding regions, are <strong>removed<\/strong>.<\/li>\n\n\n\n<li><strong>Exons<\/strong>, which are coding regions, are <strong>spliced together<\/strong> and <strong>retained<\/strong>.<\/li>\n\n\n\n<li>A <strong>5\u2032 cap<\/strong> is added to the beginning of the RNA.<\/li>\n\n\n\n<li>A <strong>poly-A tail<\/strong> is added to the 3\u2032 end.<\/li>\n<\/ol>\n\n\n\n<p>The incorrect statement is (A) because <strong>exons are not cut out<\/strong>. Instead, <strong>introns<\/strong> are the parts that are <strong>removed<\/strong>, and <strong>exons remain<\/strong> in the final processed mRNA.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Option B<\/strong> is true: Nucleotides are added at both ends (5\u2032 cap and poly-A tail).<\/li>\n\n\n\n<li><strong>Option C<\/strong> is true: Some <strong>ribozymes<\/strong> (RNA molecules with catalytic activity) can catalyze RNA splicing.<\/li>\n\n\n\n<li><strong>Option D<\/strong> is true: <strong>Spliceosomes<\/strong>, large RNA-protein complexes, carry out RNA splicing.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Summary:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>anticodon<\/strong> of tRNA is <strong>complementary to the mRNA codon<\/strong>.<\/li>\n\n\n\n<li>During RNA processing, <strong>exons are not removed<\/strong>\u2014they are preserved; <strong>introns<\/strong> are removed.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The anticodon of a particular tRNA molecule is (A) complementary to the corresponding mRNA codon.(B) complementary to the corresponding triplet in rRNA.(C) the part of tRNA that bonds to a specific amino acid.(D) catalytic, making the tRNA a ribozyme.Which of the following is not true of RNA processing? (A) Exons are cut out before mRNA [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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":"","ast-disable-related-posts":"","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":"default","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":[25],"tags":[],"class_list":["post-215208","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/215208","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=215208"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/215208\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=215208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=215208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=215208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}