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Definition of Basic Local Alignment Search Tool

Basic Local Alignment Search Tool: Abbreviated BLAST. A computer program that identifies homologous genes in different organisms (such as worms, the fruit fly, mice, and humans). Homologous genes are genes in different species that share similar structures and functions.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=16850
Last Editorial Review: 6/14/2012

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