{"id":178887,"date":"2024-12-28T15:17:55","date_gmt":"2024-12-28T15:17:55","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=178887"},"modified":"2024-12-28T15:17:57","modified_gmt":"2024-12-28T15:17:57","slug":"if-a-strand-of-dna-has-the-nitrogen-base-sequence-5-atttgc-3","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/12\/28\/if-a-strand-of-dna-has-the-nitrogen-base-sequence-5-atttgc-3\/","title":{"rendered":"If a strand of DNA has the nitrogen base sequence 5&#8242;-ATTTGC-3&#8242;"},"content":{"rendered":"\n<p>If a strand of DNA has the nitrogen base sequence 5&#8242;-ATTTGC-3&#8242;, what will be the sequence of the matching strand?<\/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<p>The sequence of the complementary DNA strand to 5&#8242;-ATTTGC-3&#8242; is 3&#8242;-TAAACG-5&#8242;.<\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>DNA consists of two strands forming a double helix, with each strand composed of nucleotides containing a sugar, a phosphate group, and a nitrogenous base. The four types of nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair specifically: adenine pairs with thymine, and cytosine pairs with guanine, forming base pairs through hydrogen bonds.<\/p>\n\n\n\n<p>In the given DNA sequence, 5&#8242;-ATTTGC-3&#8242;, the bases are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Adenine (A)<\/strong><\/li>\n\n\n\n<li><strong>Thymine (T)<\/strong><\/li>\n\n\n\n<li><strong>Thymine (T)<\/strong><\/li>\n\n\n\n<li><strong>Thymine (T)<\/strong><\/li>\n\n\n\n<li><strong>Guanine (G)<\/strong><\/li>\n\n\n\n<li><strong>Cytosine (C)<\/strong><\/li>\n<\/ul>\n\n\n\n<p>To determine the sequence of the complementary strand, we apply the base pairing rules:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A<\/strong> pairs with <strong>T<\/strong><\/li>\n\n\n\n<li><strong>T<\/strong> pairs with <strong>A<\/strong><\/li>\n\n\n\n<li><strong>T<\/strong> pairs with <strong>A<\/strong><\/li>\n\n\n\n<li><strong>T<\/strong> pairs with <strong>A<\/strong><\/li>\n\n\n\n<li><strong>G<\/strong> pairs with <strong>C<\/strong><\/li>\n\n\n\n<li><strong>C<\/strong> pairs with <strong>G<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Therefore, the complementary strand will have the sequence 3&#8242;-TAAACG-5&#8242;.<\/p>\n\n\n\n<p>This complementary pairing ensures that the genetic information is accurately replicated during DNA replication, maintaining the integrity of the genetic code.<\/p>\n\n\n\n<p>It&#8217;s important to note that DNA strands have directionality, indicated by the 5&#8242; and 3&#8242; ends. The 5&#8242; end has a phosphate group attached to the fifth carbon of the sugar ring, while the 3&#8242; end has a hydroxyl group attached to the third carbon. In double-stranded DNA, the strands run in opposite directions, a property known as antiparallel orientation.<\/p>\n\n\n\n<p>Understanding base pairing and strand orientation is fundamental in molecular biology, as it underlies processes such as DNA replication, transcription, and the accurate transmission of genetic information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If a strand of DNA has the nitrogen base sequence 5&#8242;-ATTTGC-3&#8242;, what will be the sequence of the matching strand? The Correct Answer and Explanation is : The sequence of the complementary DNA strand to 5&#8242;-ATTTGC-3&#8242; is 3&#8242;-TAAACG-5&#8242;. Explanation: DNA consists of two strands forming a double helix, with each strand composed of nucleotides containing [&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-178887","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/178887","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=178887"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/178887\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=178887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=178887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=178887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}