When filling the axes of the alignment matrix, start in the upper left corner and set it to 0. Next, assign a score for each letter in the row or column. Note that there is a penalty for gaps, and that the arrow should point toward the origin of the alignment.
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Awash in a sea of data, how do scientists identify the function of a newly cloned gene? Online resources like the Basic Local Alignment Search Tool (BLAST) provide a helping hand.
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