Adenine/Thymine <a href="https://en.wikipedia.org/wiki/Watson_and_Crick" class="extiw" title="wikipedia:Watson and Crick">Watson and Crick</a> base pair. I made it with <a href="https://en.wikipedia.org/wiki/ChemTool" class="extiw" title="wikipedia:ChemTool">ChemTool</a>, then modified with the help of <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="wikipedia:Inkscape">Inkscape</a>.Czech version
<ul><li><a href="//commons.wikimedia.org/wiki/File:AT_DNA_base_pair.svg" title="File:AT DNA base pair.svg">AT_DNA_base_pair.svg</a>: original author <a href="//commons.wikimedia.org/w/index.php?title=User:Isilanes&amp;action=edit&amp;redlink=1" class="new" title="User:Isilanes (page does not exist)">User:Isilanes</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Vojtech.dostal" title="User:Vojtech.dostal">Vojtech.dostal</a></li></ul>
This file was derived from: <a href="//commons.wikimedia.org/wiki/File:AT_DNA_base_pair.svg" title="File:AT DNA base pair.svg">AT DNA base pair.svg</a>: <a href="//commons.wikimedia.org/wiki/File:AT_DNA_base_pair.svg" class="image"><img alt="AT DNA base pair.svg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/AT_DNA_base_pair.svg/50px-AT_DNA_base_pair.svg.png" decoding="async" width="50" height="33" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/AT_DNA_base_pair.svg/75px-AT_DNA_base_pair.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/9/91/AT_DNA_base_pair.svg/100px-AT_DNA_base_pair.svg.png 2x" data-file-width="296" data-file-height="193"></a><br>