Related Clues:

• Double-helix material
• Fingerprint with a twist?
• It could prove paternity
• Crime lab letters
• Sample in a crime lab
• Human genome project stuff
• "CSI" concern
• Forensics aid
• ___ sequence
• First rendering, say
• ___ fingerprinting
• Forensic topic
• Definitive evidence
• Crime-lab evidence
• Modern test subj.