Biology

Identifying Homologous Sequences


BLASTn (Basic Local Alignment Search Tool) is a database that compares your nucleotide sequence to all other nucleotide sequences in the NCBI database and then identifies sequences that share regions of homology with your sequence. Comparing sequence homology with related genes in the same family allows you to investigate how genes evolve over time.


Click on the link below to access BLASTn

 

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