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<p><u><strong>This essay is NOT completed</strong></u></p>
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<p><strong>Why chromosomes vary in size and shape:<em> in respect of evolution</em></strong></p>
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<p><strong>Abstract</strong></p>
<p>I argue here that the hypothesis is based on an imperfect model by the author, and thus need further work. This essay explored the size and shape of human chromosomes mainly with respect to the introns, transposons and centromere. I explained the phenomena as the result of the evolution. I assumed that the size of all chromosomes would be same, at the very first time. Since the organism, human being, prefer to have more variety, their evolutionary tract made introns and transposons be increased. Moreover, I believe that the evolution might also affect the location of centromere as it did on Y chromosome.</p>
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<p><strong>Introduction</strong></p>
<p><img alt="" src="/ckfinder/userfiles/images/NHGRI_human_male_karyotype(1).png" style="height:300px; width:383px" /></p>
<p><img alt="" src="/ckfinder/userfiles/images/LIWEEbYBcWWEQCTRKUAAAJaZ.png" style="height:300px; width:879px" /></p>
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<p><strong>Result</strong></p>
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<p><strong>Discussion</strong></p>
<p><strong>Reference</strong></p>
<p>1. A Guide to Writing Scientific Essays</p>
<p><a href="https://www.st-andrews.ac.uk/media/school-of-psychology/teachingdocs/currentstudents/A_Guide_To_Writing_Scientific_Essays.pdf">https://www.st-andrews.ac.uk/media/school-of-psychology/teachingdocs/currentstudents/A_Guide_To_Writing_Scientific_Essays.pdf</a></p>
<p>2. Wikipedia about Chromosome</p>
<p><a href="https://en.wikipedia.org/wiki/Chromosome#Human_chromosomes">https://en.wikipedia.org/wiki/Chromosome#Human_chromosomes</a></p>
<p>3. Ensembl</p>
<p><a href="http://www.ensembl.org/index.html">http://www.ensembl.org/index.html</a></p>
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