[Genome] question about fields in table browser

[LaRon Hughes]

Hello,
I am using the table browser to perform a comparison between the human
genome and the pig and cattle genomes.  You describe the schema for the cow
net and chicken net, but I am still unclear about some of the fields.  They
include level (level of alignment), strand (orientation of query) and
chainID ( associated chain Id with alignment details).  Could you please
elaborate of those three fields?  I would appreciate your assistance.
Thanks.  LH

-- 
Ph.D. Candidate
Bioinformatics & Computational Biology
Iowa State University
515-451-3637
http://www.ans.iastate.edu/stud/grad/directory/?id=laron