Figure 3
From: An evaluation of LSU rDNA D1-D2 sequences for their use in species identification
Two examples for ambiguous sequence positions in the forward and reverse sequencing direction of the same fragment (indicated by a red arrow). We interpret these ambiguities as polymorphic positions among the rDNA repeat units within an animal. Given that these ambiguities are very rare (see text), one can conclude that homogenization is usually very efficient.