LePA DNA is a learning tool that shows us all the intermediate steps and partial results of a pair-wise alignment of DNA sequences.

DIRECTIONS OF USE:

First of all, we have to introduce the two DNA sequences in the textfields (only 'a', 'c', 'g' or 't'). Then we choose one of the three methods available:

Next we have to put the desired values to the GAP, MATCH and MISSMATCH fields which will be used in the calculations.

To start we press the ALIGN button and we can see how two matrix appear in the visualization area. On the left side we have the Scoring Matrix which shows the partial punctuations of the alignment. And on the right matrix we can see the possible alignments until that moment.

There are four buttons: