undo the last redundancy deletion.</em></li>
<li><strong>Pad Gaps<br>
</strong><em>When selected, the alignment will be kept at minimal width (so
- there no empty columns before or after the first or last aligned
- residue) and all sequences will be padded with gap characters to the
+ there are no empty columns before or after the first or last aligned
+ residue) and all sequences will be padded with gap characters
before and after their terminating residues.<br>
This switch is useful when making a tree using unaligned sequences and
when working with alignment analysis programs which require 'properly