Following is the visual output for EBI's blast service. I don't understand it completely. I get that the left side is my sequence and right side is the subject sequence. What exactly are the colored lines, they seem to be matches. But then why is the right side just a blank line (in some cases even right side was colored).
I searched all over EBI for the interpretation of this visual output but couldn't find it anywhere. So apparently it's obvious. I am surely missing something.
Image may be NSFW.
Clik here to view.