/images/2520_1.jpg" alt="" /></span></center><span style="font-size: medium"><br />
For example, an alignment for DNA sequences &quot;AAGACG&quot; and &quot;CAGAGCTC&quot; may be: <br />
-AAGA-C-G <br />
CA-GAGCTC <br />
The total score is 3+0+3+0+0+3+0+3+4=16. <br />
<br />
Gnaileux Iew is only interested in aligning highly similar sequences. Strictly speaking, |LCS(A,B)| * 2 / (|A |+ |B|) &gt;= 90%, where A and B are the sequences to align, and LCS(A,B) is the longest common subsequence of A and B. 