Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The distribution of gap openings in homologous proteins as calculated by BLAST. Note that almost 9000 protein matches showed perfect alignments with no gaps in the matched amino acid sequences. In contrast, a small subset of about one thousand proteins showed three or more gaps in the matched sequence.
