* [http://bioruby.open-bio.org/rdoc/classes/Bio/Alignment.html Bio::Alignment]
* [http://bioruby.open-bio.org/rdoc/classes/Bio/Sequence.html Bio::Sequence]
* [http://bioruby.open-bio.org/rdoc/classes/Bio/Alignment.html Bio::Alignment]
* [http://bioruby.open-bio.org/rdoc/classes/Bio/Sequence.html Bio::Sequence]