{"id":187349,"date":"2025-02-04T08:49:23","date_gmt":"2025-02-04T08:49:23","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=187349"},"modified":"2025-02-04T08:49:26","modified_gmt":"2025-02-04T08:49:26","slug":"define-cytokinesis-select-any-of-the-following-which-describe-or-define-cytokinesis-accurately","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/04\/define-cytokinesis-select-any-of-the-following-which-describe-or-define-cytokinesis-accurately\/","title":{"rendered":"Define cytokinesis Select any of the following which describe or define cytokinesis accurately"},"content":{"rendered":"\n

Define cytokinesis Select any of the following which describe or define cytokinesis accurately. Involves the replication of DNA Precedes nuclear division Involves a cleavage furrow and a cell plate in all cells A phase of the cell cycle during which the cytoplasm divides Involves a cell plate in plant cells Follows nuclear division Involves a cleavage furrow in animal cells Only occurs in animal cells Darnt<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

Correct Answers:<\/h3>\n\n\n\n
    \n
  • A phase of the cell cycle during which the cytoplasm divides<\/strong><\/li>\n\n\n\n
  • Involves a cell plate in plant cells<\/strong><\/li>\n\n\n\n
  • Follows nuclear division<\/strong><\/li>\n\n\n\n
  • Involves a cleavage furrow in animal cells<\/strong><\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n

    Explanation:<\/h3>\n\n\n\n

    Cytokinesis<\/strong> is the process in which the cytoplasm of a single eukaryotic cell divides to form two daughter cells. It occurs after mitosis or meiosis and ensures that each daughter cell receives the necessary cellular components. It is a crucial step in the cell cycle<\/strong>, typically occurring in the M phase<\/strong> following nuclear division (mitosis or meiosis).<\/p>\n\n\n\n

    Cytokinesis does not involve DNA replication<\/strong>, as DNA replication occurs during the S phase<\/strong> of the cell cycle, before mitosis begins. It also does not precede nuclear division<\/strong>; rather, it occurs after nuclear division<\/strong>, ensuring that each nucleus is enclosed in its own new cell.<\/p>\n\n\n\n

    The mechanism of cytokinesis differs between animal and plant cells<\/strong>:<\/p>\n\n\n\n

      \n
    1. In animal cells<\/strong>, cytokinesis occurs through the formation of a cleavage furrow<\/strong>. This furrow is created by a contractile ring composed of actin and myosin<\/strong> filaments, which tighten around the center of the cell and pinch it into two separate daughter cells.<\/li>\n\n\n\n
    2. In plant cells<\/strong>, a cell plate<\/strong> forms instead of a cleavage furrow. Since plant cells have a rigid cell wall<\/strong>, they cannot simply constrict. Instead, vesicles from the Golgi apparatus fuse at the center of the dividing cell, forming a cell plate<\/strong>, which eventually develops into a new cell wall<\/strong>, dividing the two daughter cells.<\/li>\n<\/ol>\n\n\n\n

      It is incorrect to say that cytokinesis only occurs in animal cells<\/strong>, as it occurs in both animal and plant cells<\/strong>, albeit through different mechanisms. Without cytokinesis, cells would contain multiple nuclei within a single cytoplasm, which can be seen in certain specialized cells but is not the norm for most organisms.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Define cytokinesis Select any of the following which describe or define cytokinesis accurately. Involves the replication of DNA Precedes nuclear division Involves a cleavage furrow and a cell plate in all cells A phase of the cell cycle during which the cytoplasm divides Involves a cell plate in plant cells Follows nuclear division Involves a […]<\/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-187349","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187349","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=187349"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/187349\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=187349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=187349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=187349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}