 of the modified base. However, it may be of interest to know the correspondence
between the methylation state of a single base and another nearby base on the opposite strand -
on the same molecule. In CpG dinucleotides, this is called "hemi-methylation", when one cytosine
is methylated and the neighbor on the opposite strand is not:</p>
<pre><code class="language-text">     m
5'GATCGTACA
  CTAGCATGT
      -
</code></pre>
<p>In the above diagram, the cytosine in the fourth position on the positive strand is