Related Clues:

• Chain in a cell
• Forensics aid
• ___ sequence
• Uracil-based acid
• Cell essential
• Cellular carrier?
• ___ fingerprinting
• Stranded gene stuff
• Forensic topic
• Definitive evidence
• Chain letters, to geneticists
• Crime-lab evidence
• Messenger's letters?
• Modern test subj.
• Messenger, e.g.