# BLAST Searches

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In FinchTV 1.3, and above, NCBI BLAST (searches can be initiated from either Context Menu or by selecting Edit > BLAST Sequence from the menu*. The BLAST Sequence submenu offers options for BLASTN, BLASTX, TBLASTX and MegaBLAST searches. To launch a BLAST search:

1. Highlight a range of bases in the trace window (to BLAST only portion of the sequence, if nothing is highlighted the entire sequence will be used).
2. Select BLAST Sequence from the contextual menu or select Edit > BLAST Sequence from the menu and select a BLAST option from the BLAST Sequence sub menu. If only a BLASTn is desired you can type shift cmd B (Mac) or shift ctrl B (others).

*BLAST launching is not available on Linux or Solaris.

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