{"id":256077,"date":"2025-07-13T19:19:33","date_gmt":"2025-07-13T19:19:33","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=256077"},"modified":"2025-07-13T19:19:58","modified_gmt":"2025-07-13T19:19:58","slug":"what-phase-of-cell-cycle-where-dna-replication-occurs","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/13\/what-phase-of-cell-cycle-where-dna-replication-occurs\/","title":{"rendered":"What phase of cell cycle where DNA replication occurs"},"content":{"rendered":"\n<p>What phase of cell cycle where DNA replication occurs?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>DNA replication occurs during the <strong>S phase<\/strong> (Synthesis phase) of the cell cycle.<\/p>\n\n\n\n<p>The cell cycle consists of several stages, which include interphase (G1, S, and G2 phases) and mitotic (M) phase. Interphase is the phase where the cell prepares for division, and it accounts for the majority of the cell cycle.<\/p>\n\n\n\n<p>During <strong>S phase<\/strong>, the cell\u2019s DNA is replicated to ensure that each daughter cell will receive an identical copy of the genetic material. DNA replication is a complex process involving unwinding the double helix, separating the strands, and synthesizing complementary strands to form two identical DNA molecules.<\/p>\n\n\n\n<p>The process begins when the enzyme <strong>helicase<\/strong> unwinds the double-stranded DNA, and <strong>DNA polymerase<\/strong> synthesizes the new complementary strands by adding nucleotides. Each original strand serves as a template for the synthesis of a new strand. The end result is two identical copies of the cell&#8217;s genome.<\/p>\n\n\n\n<p>The <strong>G1 phase<\/strong> (Gap 1) occurs before the S phase, and during this phase, the cell grows and carries out normal functions. After the S phase, the cell enters the <strong>G2 phase<\/strong> (Gap 2), during which the cell prepares for mitosis by synthesizing proteins and organelles that will be needed for cell division.<\/p>\n\n\n\n<p>Following interphase, the cell enters the <strong>M phase<\/strong> (Mitosis), where the replicated DNA is evenly divided into two daughter cells, and cell division takes place.<\/p>\n\n\n\n<p>In summary, DNA replication specifically occurs in the S phase of the cell cycle, ensuring that the genetic material is accurately copied before cell division. This step is crucial for maintaining genetic consistency across cell generations.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-562.jpeg\" alt=\"\" class=\"wp-image-256078\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What phase of cell cycle where DNA replication occurs? The Correct Answer and Explanation is: DNA replication occurs during the S phase (Synthesis phase) of the cell cycle. The cell cycle consists of several stages, which include interphase (G1, S, and G2 phases) and mitotic (M) phase. Interphase is the phase where the cell prepares [&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-256077","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256077","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=256077"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/256077\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=256077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=256077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=256077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}