<p><strong><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">তৃতীয় অধ্যায়</span></span></span></span></strong></p> <p><strong><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">কোষ বিভাজন</span></span></span></span></strong></p> <p><strong><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">বহু নির্বাচনী প্রশ্ন</span></span></span></span></strong></p> <p><strong><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">[পূর্ব প্রকাশের পর]</span></span></span></span></strong></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">নিচের উদ্দীপকটি লক্ষ করে ২৯ ও ৩০ নং প্রশ্নের উত্তর দাও।</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">কাজের ভিত্তিতে প্রকৃত কোষ দুই ধরনের। যথা</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""><img alt="জীববিজ্ঞান" height="78" src="https://cdn.kalerkantho.com/public/news_images/share/photo/shares/1.Print/2023/06.June/08-06-2023/Shilpo/Kk---23'06'08-3.jpg" width="271" /></span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">২৯। উদ্দীপকে </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">A</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">-এর বৈশিষ্ট্য হলো</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i.</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> মাইটোসিস পদ্ধতিতে কোষ বিভাজিত হয়</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">ii.</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> বিভিন্ন অঙ্গ-প্রত্যঙ্গ গঠন করে </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">iii.</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> জীবদেহের বৃদ্ধি ঘটায়</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">নিচের কোনটি সঠিক?</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ক)</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> i </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">ii </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  খ) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> iii </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">গ) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">ii </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> iii</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ঘ) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i, ii </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">iii</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৩০।</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> B</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> কোষটি </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">A</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> থেকে ভিন্নতর, কারণ</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i. </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">প্রজাতির ধারাবাহিকতা বজায় রাখে</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">ii.</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ক্রমোজোম সংখ্যা মাতৃকোষের সমান থাকে</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">iii.</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> শুধু বহুকোষী জীবে সৃষ্টি হয়</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">নিচের কোনটি সঠিক?</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ক) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> ii</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> খ) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ও </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">iii </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">গ)</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> ii</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ও </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">iii </span></span> </span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ঘ) </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">i, ii </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ও</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif""> iii</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৩১। কোন প্রকৃতির কোষ বিভাজনের ফলে জীবজগতে গুণগত বৈশিষ্ট্যের স্থিতিশীলতা বজায় থাকে?</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ক) অ্যামাটোসিস  </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">খ) মাইটোসিস </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">গ) মিয়োসিস      </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ঘ) দ্বি-বিভাজন</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৩২। জননকোষের সংখ্যা বৃদ্ধি পায় কোন বিভাজনের কারণে?</span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ক) মিয়োসিস    </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">খ) মাইটোসিস </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">গ) অ্যামাইটোসিস </span></span></span></span></p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">ঘ) ক্যারিওকাইনেসিস</span></span></span></span></p> <p> </p> <p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"><strong>উত্তর :</strong> ২৯. ঘ ৩০. খ ৩২. খ ৩২. খ।</span></span></span></span></p>