## Description

This track shows the BLAT alignments of your sequence(s) to the genome assembly. In the Genome Browser, alignments of nucleotides use color to highlight differences as follows:

- red: Genome and query sequence have different bases at this position.
- orange: The query sequence has an insertion (or genome has a deletion / alignment gap) at this point.
- purple: The query sequence extends beyond the end of the alignment.
- green: The query sequence appears to have a polyA tail which is not aligned to the genome.

Also, when the alignment has gaps for both genome and query sequence, double horizontal lines are drawn.

## Credits

This track was generated by Jim Kent of the UCSC Genome Bioinformatics Group.