Global alignment for two RNA/DNA/protein sequences

This is a demo for global alignment for two RNA/DNA/protein sequences - Needleman-Wunsch

This is a demo for global alignment for two RNA/DNA/protein sequences using Needleman-Wunsch

match score: 1

mismatch score: -1

gap score：-2

The max score of following three:

(1) s(i - 1, j - 1) + match/mismatch diag

(2) s(i - 1, j) + gap

(3) s(i, j - 1) + gap