+-_-+++---+++;</p>
<p>&#160;</p>
<p>Each site can be associated with only one label.&#160;&#160;A label 
 can be a letter or a number.</p>
<p>For analyses that require <a href="Codon.htm" style="color: #007fbf;"><u 
	 style="color: #007fbf;"><span style="color: #007fbf;">codons</span></u><span 
	 style="display: none; color: #007fbf;">RH_Codon</span></a>, <i>MEGA</i> 
 includes only those codons in which all three positions are given the 
 same <a href="Site_Label.htm" style="color: #007fbf;"><u style="colo