{"id":190947,"date":"2025-02-14T04:15:25","date_gmt":"2025-02-14T04:15:25","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=190947"},"modified":"2025-02-14T04:15:28","modified_gmt":"2025-02-14T04:15:28","slug":"during-the-process-of-elongation-polypeptide-synthesis-takes-place","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/14\/during-the-process-of-elongation-polypeptide-synthesis-takes-place\/","title":{"rendered":"During the process of elongation, polypeptide synthesis takes place"},"content":{"rendered":"\n<p>During the process of elongation, polypeptide synthesis takes place.<br>IRNA carries amino acids to mRNA.<br>Once a ribosome reaches a start codon, initiation occurs and the ribosomal subunits break away from the mRNA.<br>After transcription, mRNA leaves the nucleus and enters the cytoplasm of the cell.<br>Some ribosomes attach to the rough ER where polypeptides enter to be modified.<br>During the process of initiation, anticodon-codon complementary base pairing begins as the ribosomal subunits join together at a start codon.<br>Once there, it becomes associated with ribosomes, constructed out of and protein.<br>nucleus<br>IRNA<br>initiation<br>stop<br>termination<br>start<br>IRNA<br>cytoplasm<br>rough ER<br>elongation<br>Feb<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Corrected Statements:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>During the process of <strong>elongation<\/strong>, polypeptide synthesis takes place. \u2705 (Correct)<\/li>\n\n\n\n<li><strong>tRNA<\/strong> (not IRNA) carries amino acids to mRNA. \u274c (Correction: tRNA)<\/li>\n\n\n\n<li>Once a ribosome reaches a <strong>stop codon<\/strong>, termination occurs and the ribosomal subunits break away from the mRNA. \u274c (Correction: stop codon, not start codon)<\/li>\n\n\n\n<li>After transcription, mRNA leaves the <strong>nucleus<\/strong> and enters the <strong>cytoplasm<\/strong> of the cell. \u2705 (Correct)<\/li>\n\n\n\n<li>Some ribosomes attach to the <strong>rough ER<\/strong>, where polypeptides enter to be modified. \u2705 (Correct)<\/li>\n\n\n\n<li>During the process of <strong>initiation<\/strong>, anticodon-codon complementary base pairing begins as the ribosomal subunits join together at a <strong>start codon<\/strong>. \u2705 (Correct)<\/li>\n\n\n\n<li>Once there, it becomes associated with ribosomes, constructed out of <strong>rRNA<\/strong> and protein. \u274c (Correction: rRNA, not IRNA)<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Protein synthesis occurs in three main stages: <strong>initiation, elongation, and termination<\/strong>.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Initiation<\/strong>: The process begins when the small ribosomal subunit binds to mRNA at the <strong>start codon<\/strong> (AUG). A <strong>tRNA<\/strong> carrying the amino acid methionine (Met) binds to this codon via its <strong>anticodon<\/strong>. The large ribosomal subunit then joins, forming a functional ribosome.<\/li>\n\n\n\n<li><strong>Elongation<\/strong>: In this stage, amino acids are brought to the ribosome by <strong>tRNA<\/strong> molecules. Each tRNA has an <strong>anticodon<\/strong> that matches the codon on mRNA, ensuring correct amino acid placement. Peptide bonds form between amino acids, creating a growing polypeptide chain.<\/li>\n\n\n\n<li><strong>Termination<\/strong>: When the ribosome reaches a <strong>stop codon<\/strong> (UAA, UAG, or UGA), no tRNA matches it. Instead, <strong>release factors<\/strong> cause the ribosome to detach from mRNA, releasing the completed polypeptide.<\/li>\n<\/ol>\n\n\n\n<p>After transcription in the <strong>nucleus<\/strong>, mRNA moves to the <strong>cytoplasm<\/strong>, where ribosomes synthesize proteins. Some ribosomes are <strong>free-floating<\/strong>, while others attach to the <strong>rough ER<\/strong>, modifying proteins for secretion or specific functions.<\/p>\n\n\n\n<p>Understanding this process is essential for biology and medicine, as protein synthesis is a fundamental mechanism in all living organisms.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>During the process of elongation, polypeptide synthesis takes place.IRNA carries amino acids to mRNA.Once a ribosome reaches a start codon, initiation occurs and the ribosomal subunits break away from the mRNA.After transcription, mRNA leaves the nucleus and enters the cytoplasm of the cell.Some ribosomes attach to the rough ER where polypeptides enter to be modified.During [&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-190947","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190947","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=190947"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190947\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=190947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=190947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=190947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}