কোষচক্রে S দশা সৃষ্টি হয় কেন - Time Of BD - Education Blog

<style>/*<link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=7359093582121555974&zx=5122dd6a-0fc0-4b3e-9e09-932ff1400a5f' media='none' onload='if(media!='all')media='all'' rel='stylesheet'/><noscript><link href='https://www.blogger.com/dyn-css/authorization.css?targetBlogID=7359093582121555974&zx=5122dd6a-0fc0-4b3e-9e09-932ff1400a5f' rel='stylesheet'/></noscript>
<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/>
<meta name='google-adsense-platform-domain' content='blogspot.com'/>

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-8609855355790463&host=ca-host-pub-1556223355139109" crossorigin="anonymous"></script>

<!-- data-ad-client=ca-pub-8609855355790463 -->

<link rel="stylesheet" href="https://fonts.googleapis.com/css2?display=swap&family=Kaushan+Script&family=Courgette&family=Arvo&family=Roboto+Condensed&family=Josefin+Sans&family=Dancing+Script&family=Source+Serif+Pro&family=Anek+Bangla"></head><body>*/</style>

কোষচক্রে S দশা সৃষ্টি হয় কেন

Safwan Alam

April 21, 2021

কোষচক্রেS- দশা সৃষ্টি হয় কেন

উত্তর : এ দশাটি সৃষ্টি না হলে কোষ বিভাজন সম্ভব নয় । এ দশায় বিভিন্ন হিস্টোন প্রােটিন সংশ্লেষণ হয় যা DNA- র সাথে মিলে নিউক্লিওজোম গঠন করে এবং এ দশায় অন্যান্য প্রােটিন সংশ্লেষণ বজায় থাকে । প্রাণীকোষ ও কিছু নিম্নশ্রেণির কোষে S দশায় ( ক্ষেত্রবিশেষ G2 ) সাইটোপ্লাজম - এ সেন্ট্রিওল এর দ্বিত্বকরণ ( Duplication ) ঘটে । S- দশাকে M দশার অদৃশ্য ( Invisible phase ) বলা হয় কারণ এ দশায় ক্রোমােসােমের প্রতিলিপিকরণ ও ক্রোটিড গঠন প্রক্রিয়া সম্পন্ন হয় ।

Tag:কোষচক্রে S দশা সৃষ্টি হয় কেন

<style>/*
<script type="text/javascript" src="https://www.blogger.com/static/v1/widgets/541336192-widgets.js"></script>
<script type='text/javascript'>
window['__wavt'] = 'AOuZoY5fGBjnNdSf8wWrByWk2f3I5c5HUg:1685841975171';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d7359093582121555974','//www.timeofbd.com/2021/04/s_21.html','7359093582121555974');
_WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '7359093582121555974', 'title': 'Time Of BD - Education Blog', 'url': 'https://www.timeofbd.com/2021/04/s_21.html', 'canonicalUrl': 'https://www.timeofbd.com/2021/04/s_21.html', 'homepageUrl': 'https://www.timeofbd.com/', 'searchUrl': 'https://www.timeofbd.com/search', 'canonicalHomepageUrl': 'https://www.timeofbd.com/', 'blogspotFaviconUrl': 'https://www.timeofbd.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': true, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'UA-202017316-1', 'encoding': 'UTF-8', 'locale': 'en', 'localeUnderscoreDelimited': 'en', 'languageDirection': 'ltr', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Time Of BD - Education Blog - Atom\x22 href\x3d\x22https://www.timeofbd.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22Time Of BD - Education Blog - RSS\x22 href\x3d\x22https://www.timeofbd.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Time Of BD - Education Blog - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/7359093582121555974/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22Time Of BD - Education Blog - Atom\x22 href\x3d\x22https://www.timeofbd.com/feeds/4940053544183565463/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseClientId': 'ca-pub-8609855355790463', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': true, 'adsenseAutoAds': true, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/0942d4f782c66904', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'sharing': {'platforms': [{'name': 'Get link', 'key': 'link', 'shareMessage': 'Get link', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': 'Share to Facebook', 'target': 'facebook'}, {'name': 'BlogThis!', 'key': 'blogThis', 'shareMessage': 'BlogThis!', 'target': 'blog'}, {'name': 'Twitter', 'key': 'twitter', 'shareMessage': 'Share to Twitter', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': 'Share to Pinterest', 'target': 'pinterest'}, {'name': 'Email', 'key': 'email', 'shareMessage': 'Email', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27en\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': true, 'jumpLinkMessage': 'Latest  post\xbb', 'pageType': 'item', 'postId': '4940053544183565463', 'postImageThumbnailUrl': 'https://1.bp.blogspot.com/-LIayMN-DXgc/YH-9ZS9v3bI/AAAAAAAAAaM/qnlWGfPJJis0vUhF6QQZxkrreHO9A4LggCLcBGAsYHQ/s72-c/CE44FA2C-876E-46C6-8997-EC4E4A819A25.jpeg', 'postImageUrl': 'https://1.bp.blogspot.com/-LIayMN-DXgc/YH-9ZS9v3bI/AAAAAAAAAaM/qnlWGfPJJis0vUhF6QQZxkrreHO9A4LggCLcBGAsYHQ/s320/CE44FA2C-876E-46C6-8997-EC4E4A819A25.jpeg', 'pageName': '\u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7 S \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 ', 'pageTitle': 'Time Of BD - Education Blog: \u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7 S \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 ', 'metaDescription': '\u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7S- \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 '}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': 'Edit', 'linkCopiedToClipboard': 'Link copied to clipboard!', 'ok': 'Ok', 'postLink': 'Post Link'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': 'Custom', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': '\u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7 S \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 ', 'description': '\u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7S- \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 ', 'featuredImage': 'https://1.bp.blogspot.com/-LIayMN-DXgc/YH-9ZS9v3bI/AAAAAAAAAaM/qnlWGfPJJis0vUhF6QQZxkrreHO9A4LggCLcBGAsYHQ/s320/CE44FA2C-876E-46C6-8997-EC4E4A819A25.jpeg', 'url': 'https://www.timeofbd.com/2021/04/s_21.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 4940053544183565463}}, {'name': 'widgets', 'data': [{'title': 'Upload Image', 'type': 'Image', 'sectionId': 'upload-image', 'id': 'Image10'}, {'title': 'Logo', 'type': 'HTML', 'sectionId': 'header-main', 'id': 'HTML10'}, {'title': 'Icons, Dark, Search', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList10'}, {'title': 'Menu', 'type': 'LinkList', 'sectionId': 'header-main', 'id': 'LinkList11'}, {'title': 'ExtraMenu', 'type': 'LinkList', 'sectionId': 'extra-menu', 'id': 'LinkList15'}, {'title': '', 'type': 'HTML', 'sectionId': 'special-home', 'id': 'HTML25'}, {'title': '', 'type': 'HTML', 'sectionId': 'before-blog', 'id': 'HTML11'}, {'title': '', 'type': 'HTML', 'sectionId': 'before-post', 'id': 'HTML8'}, {'title': 'Blog Posts', 'type': 'Blog', 'sectionId': 'blog-post', 'id': 'Blog1', 'posts': [{'id': '4940053544183565463', 'title': '\u0995\u09cb\u09b7\u099a\u0995\u09cd\u09b0\u09c7 S \u09a6\u09b6\u09be \u09b8\u09c3\u09b7\u09cd\u099f\u09bf \u09b9\u09af\u09bc \u0995\u09c7\u09a8 ', 'featuredImage': 'https://1.bp.blogspot.com/-LIayMN-DXgc/YH-9ZS9v3bI/AAAAAAAAAaM/qnlWGfPJJis0vUhF6QQZxkrreHO9A4LggCLcBGAsYHQ/s320/CE44FA2C-876E-46C6-8997-EC4E4A819A25.jpeg', 'showInlineAds': false}], 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'author', 'label': 'by'}, {'name': 'timestamp', 'label': ''}, {'name': 'comments', 'label': 'Comment'}]}], 'allBylineItems': [{'name': 'author', 'label': 'by'}, {'name': 'timestamp', 'label': ''}, {'name': 'comments', 'label': 'Comment'}]}, {'title': '', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML9'}, {'title': '', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML4'}, {'title': '#You may also like', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML15'}, {'title': '', 'type': 'HTML', 'sectionId': 'ads-post', 'id': 'HTML17'}, {'title': '', 'type': 'HTML', 'sectionId': 'after-blog', 'id': 'HTML18'}, {'title': '', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML6'}, {'title': '', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML5'}, {'title': 'RECENTLY COMMENTS', 'type': 'HTML', 'sectionId': 'sidebar-static', 'id': 'HTML1'}, {'title': '', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML7'}, {'title': 'Class 1-5 Book Note', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML2'}, {'title': 'Class 6-10 Book Note', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML21'}, {'title': 'HSC All Book Note', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML3'}, {'title': 'Follow Us', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList14'}, {'title': 'LEGALLY PAGE\x27S', 'type': 'LinkList', 'sectionId': 'footer-widget', 'id': 'LinkList13'}, {'title': 'Newsletter', 'type': 'HTML', 'sectionId': 'footer-widget', 'id': 'HTML22'}, {'title': 'Copyright', 'type': 'HTML', 'sectionId': 'copyright', 'id': 'HTML23'}, {'title': '', 'type': 'HTML', 'sectionId': 'extra-bottom', 'id': 'HTML24'}, {'title': 'SVG Icons', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML27'}, {'title': 'License Key', 'type': 'HTML', 'sectionId': 'jet-options', 'id': 'HTML28'}]}]);
_WidgetManager._RegisterWidget('_ImageView', new _WidgetInfo('Image10', 'upload-image', document.getElementById('Image10'), {'resize': false}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML10', 'header-main', document.getElementById('HTML10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList10', 'header-main', document.getElementById('LinkList10'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList11', 'header-main', document.getElementById('LinkList11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList15', 'extra-menu', document.getElementById('LinkList15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML25', 'special-home', document.getElementById('HTML25'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML11', 'before-blog', document.getElementById('HTML11'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML8', 'before-post', document.getElementById('HTML8'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'blog-post', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/2226058792-lbx.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/3268905543-lightbox_bundle.css'}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML9', 'ads-post', document.getElementById('HTML9'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML4', 'ads-post', document.getElementById('HTML4'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML15', 'ads-post', document.getElementById('HTML15'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML17', 'ads-post', document.getElementById('HTML17'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML18', 'after-blog', document.getElementById('HTML18'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML6', 'sidebar-static', document.getElementById('HTML6'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML5', 'sidebar-static', document.getElementById('HTML5'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML1', 'sidebar-static', document.getElementById('HTML1'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML7', 'footer-widget', document.getElementById('HTML7'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML2', 'footer-widget', document.getElementById('HTML2'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML21', 'footer-widget', document.getElementById('HTML21'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML3', 'footer-widget', document.getElementById('HTML3'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList14', 'footer-widget', document.getElementById('LinkList14'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_LinkListView', new _WidgetInfo('LinkList13', 'footer-widget', document.getElementById('LinkList13'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML22', 'footer-widget', document.getElementById('HTML22'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML23', 'copyright', document.getElementById('HTML23'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML24', 'extra-bottom', document.getElementById('HTML24'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML27', 'jet-options', document.getElementById('HTML27'), {}, 'displayModeFull'));
_WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML28', 'jet-options', document.getElementById('HTML28'), {}, 'displayModeFull'));
</script>
</body>*/</style>