What modes does LINEUP have?
LINEUP is always in one of four modes. These are: Mode Operations in this mode Command Help, Exit (save changes), Quit (don’t save), entering other modes, setting program state (ie, OVERSTRIKE vs. INSERT). Screen Editing the sequence, reading/ writing pieces. Heading Editing the header information (the stuff above the “..” in GCG sequence files.) Use the arrow keys to move up and down and to scroll through lines. Comment Entering comments into the sequence. These are the ones that show up like: AGCT