<p><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">দ্বিতীয় অধ্যায়</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">কোষ বিভাজন</span></span></span></span></p> <p> </p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">বহু নির্বাচনী প্রশ্ন</span></span></strong></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১। কোষ বিভাজন কে আবিষ্কার/লক্ষ করেন? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) বোভেরি খ) রুডলফ ভিরচাত্ত</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) ডব্লিউ ফ্লেমিং    ঘ) ট্রাসবার্জার</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ২।        </span></span></span></span></p> <p style="margin-left:24px"><img alt="কোষ বিভাজন" height="164" src="https://cdn.kalerkantho.com/public/news_images/share/photo/shares/1.Print/2024/08.August/23-08-2024/mk/kk-13-2024-08-06-05.jpg" width="589" /></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">উপরোক্ত প্রক্রিয়ায় সংখ্যাবৃদ্ধি করে</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span> </span></span></p> <p style="margin-left:24px"><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"> ব্যাকটেরিয়া </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">. ছত্রাক </span></span></span></span></p> <p style="margin-left:24px"><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">. ভাইরাস </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  নিচের কোনটি সঠিক?</span></span></strong></span></span></p> <p style="margin-left:24px"><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 style="margin-left:24px"><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 style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৩।         নিচের কোনটি নিউক্লিয়াসের বিভাজন?/ নিউক্লিয়াসের বিভাজনকে কী বলে? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) মেটাকাইনেসিস   খ) ইন্টারকাইনেসিস</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) ক্যারিওকাইনেসিস ঘ) সাইটোকাইনেসিস</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৪।         ক্যারিওকাইনেসিসে</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span> </span></span></p> <p style="margin-left:24px"><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">. নিউক্লিয়াসের সংখ্যা বৃদ্ধি পায়</span></span></span></span></p> <p style="margin-left:24px"><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">. কোষের সংখ্যা বৃদ্ধি পায়</span></span></span></span></p> <p style="margin-left:24px"><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">. নিউক্লিয়াসের বিভাজন ঘটে </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  নিচের কোনটি সঠিক?</span></span></strong></span></span></p> <p style="margin-left:24px"><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 style="margin-left:24px"><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</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">, </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 style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৫। সাইটোপ্লাজমের বিভাজনকে কী বলে? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) ক্যারিওকাইনেসিস খ) সাইটোকাইনেসিস</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাকাইনেসিস   ঘ) ডায়াকাইনেসিস</span></span></span></span></p> <p style="margin-left:24px; text-align:left"><span style="font-size:10pt"><span style="font-family:Kantho"><span style="color:black"><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৬। কোষচক্রের কোন ধাপের নিউক্লিয়াসকে বিপাকীয় নিউক্লিয়াস বলে?/কোন উপপর্যায়ে </span></span><span style="font-size:9.0pt"><span style="font-family:"Times New Roman","serif"">DNA </span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">অনুলিপন ঘটে? </span></span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) ইন্টারফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাফেজ  ঘ) প্রো-মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৭। কোষচক্রের বিরাম-১ </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">(</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">G -1</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">) দশায় ব্যয়িত সময়</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span> </span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) ১০-২০%  খ) ৩০-৪০%    </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) ৩০-৫০%  ঘ) ৯০- ৯৫%</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৮।  কোষচক্রের সংশ্লেষণ দশায় ব্যয়িত সময়</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) ১০-২০%  খ) ৩০-৪০%    </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) ৩০-৫০%  ঘ) ৯০- ৯৫%</span></span></span></span></p> <p style="margin-left:24px; text-align:left"><span style="font-size:10pt"><span style="font-family:Kantho"><span style="color:black"><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">৯। কোষচক্রের কোন পর্যায়ে </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">DNA</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> সংশ্লেষণ ঘটে?/হিস্টোন প্রোটিন সংশ্লেষ হয় কোষচক্রের কোন দশায়?/কোষচক্রের কোন পর্যায়ে </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">DNA</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> অনুলিপন হয়?</span></span></span></span></span></p> <p style="margin-left:24px"><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"">G<sub>1</sub></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"">S</span></span>   </span></span></p> <p style="margin-left:24px"><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"">G<sub>2</sub></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"">M</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১০।স্তন্যপায়ীদের কোষচক্রে মাইটোসিস দশা কতক্ষণ স্থায়ী হয়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) ০.৫- ১ ঘণ্টা   </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  খ) ১ - ১.৫ ঘণ্টা</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) ২ - ২.৫ ঘণ্টা  </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ঘ) ৩ - ৫ ঘণ্টা</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  <strong>নিচের উদ্দীপকটি লক্ষ কর এবং ১১ ও ১২ নম্বর প্রশ্নের উত্তর দাও : </strong></span></span></span></span></p> <p style="margin-left:24px"><img alt="কোষ বিভাজন" height="250" src="https://cdn.kalerkantho.com/public/news_images/share/photo/shares/1.Print/2024/08.August/23-08-2024/mk/kk-13-2024-08-06-05a.jpg" width="661" /></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ১১। উদ্দীপকের চিত্রের কোন দশায় </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">DNA</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> অণুর রেপ্লিকেশন হয়? </span></span></span></span></p> <p style="margin-left:24px"><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"">A</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"">B</span></span></span></span></p> <p style="margin-left:24px"><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"">C</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"">D</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১২।চিত্রের </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">D</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> পর্যায়টিতে</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span>    </span></span></p> <p style="margin-left:24px"><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">. মাইক্রোটিউবিউল তৈরির সূচনা হয় </span></span></span></span></p> <p style="margin-left:24px"><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">. ২০-৩০% সময় ব্যয় হয়</span></span></span></span></p> <p style="margin-left:24px"><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">. </span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">ATP</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> তৈরি হয়</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  নিচের কোনটি সঠিক?</span></span></strong></span></span></p> <p style="margin-left:24px"><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 style="margin-left:24px"><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 style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৩। মাইটোসিস-এর কোন পর্যায়ে ক্রোমোজোম হতে পানি বিয়োজন ঘটে?</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) অ্যানাফেজ ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৪।মাইটোসিস কোষ বিভাজনের কোন ধাপে নিউক্লিওলাসের বিলুপ্ত ঘটে? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) ইন্টারফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) অ্যানাফেজ ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৫। কোন পর্যায়ে ক্রোমোজোমগুলো মোটা হতে থাকে? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) অ্যানাফেজ ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৬। মাইটোসিসের কোন পর্যায়ে কোষের নিউক্লিয়াস আকারে বড় হয়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) অ্যানাফেজ ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৭। মাইটোসিস কোষবিভাজনের স্বল্পস্থায়ী ধাপ কোনটি? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) প্রো-মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাফেজ  ঘ) অ্যানাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৮। প্রো-মেটাফেজ ধাপে</span></span><span style="font-size:14.0pt"><span style="font-family:"Times New Roman","serif"">—</span></span></span></span></p> <p style="margin-left:24px"><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">. সেন্ট্রিওল থেকে অ্যাস্টার রশ্মির সৃষ্টি হয়</span></span></span></span></p> <p style="margin-left:24px"><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">. স্পিন্ডল যন্ত্রের গঠন শুরু হতে থাকে</span></span></span></span></p> <p style="margin-left:24px"><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">. ক্রোমাটিডগুলো স্প্রিংয়ের ন্যায় কুণ্ডলিত হয়</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  নিচের কোনটি সঠিক?</span></span></strong></span></span></p> <p style="margin-left:24px"><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 style="margin-left:24px"><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 style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১৯।মাইটোসিস কোষবিভাজনের কোন ধাপে স্পিন্ডল যন্ত্রের সৃষ্টি হয়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) প্রোমেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাফেজ  ঘ) অ্যানাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">২০। ক্রোমোসোমাল নৃত্য দেখা যায় কোন দশায়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) প্রোমেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাফেজ  ঘ) অ্যানাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">২১।কোন ধাপে অ্যাস্টার রশ্মির সৃষ্টি হয়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  খ) প্রোমেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) মেটাফেজ  </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">২২। মাইটোসিস কোষবিভাজনের কোন দশায় ক্রোমোজোম বিষুবীয় অঞ্চলে বিন্যস্ত হয়? </span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  ক) প্রোফেজ খ) মেটাফেজ</span></span></span></span></p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  গ) অ্যানাফেজ ঘ) টেলোফেজ</span></span></span></span></p> <p style="margin-left:24px"> </p> <p style="margin-left:24px"><span style="font-size:11pt"><span style="font-family:"Calibri","sans-serif""><strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">  উত্তর : </span></span></strong><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi">১. গ</span></span><span style="font-size:14.0pt"><span style="font-family:SolaimanLipi"> ২. ক ৩. গ ৪. খ ৫. খ ৬. খ ৭. খ ৮. গ ৯. খ ১০. খ ১১. গ ১২. খ ১৩. ক ১৪. ক ১৫. ক ১৬. ক ১৭. খ ১৮. ক ১৯. খ ২০. খ ২১. খ ২২. খ।</span></span></span></span></p> <p style="margin-left:24px"> </p>