I've got a question regarding the BLASTn search algorithm that I can't quite grasp. Is it possible for two DNA sequences of length 100 may be >90% identical but have no similarity according to the BLASTn search and if so, how?
Is it to do with differences in alignment with the HSP or it's threshold values?
Is it to do with differences in alignment with the HSP or it's threshold values?
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