11.03 Modeling Replication

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11.03 Modeling Replication<img src="$IMS-CC-FILEBASE$../resources/dnarepmodel_573c8643bbe61.jpg" width="324" height="243" style="float: right; margin: 10px;" id="tme_imgModEnabled" title="" /> Use two ziploc plastic bags to model how complementary strands of DNA attach to template strands during replication. Materials: <ul style="line-height: 16.8px;"> <li>2 ziploc bags</li> <li>scissors</li> </ul> Procedure: <ul style="line-height: 16.8px;"> <li>Cut the sliding sippers off both bags</li> <li>One zipper represents the template strands of a DNA molecule</li> <li>Cut the other zipper into four smaller pieces and unzip each of them. These represent free nucleotides.</li> <li>Use the pieces to model replication as demonstrated in the animation<a href="http://my.hrw.com/content/hmof/scien...s91/index.html">Replicating DNA</a>.</li> </ul> Analysis: <ul> <li>What are the limitations of this model?</li> </ul>