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.
Fragment markers. One of the implementation optimizations is marking locations in the sequences where fragments are not found in the visible sequence. Doing so eliminates the need to rescan sequences during the distance calculation for fragments that are already known to be found within the original sequence.
