Related Clues:

• Kind of bag or box
• It's shared by identical twins
• CSI concern
• Hard-to-break plates
• 6-Across evidence
• It can prove kinship
• Father identifier
• Genentech's ticker symbol
• See 106-Across
• Watson's code letters
• High-tech "fingerprint"
• Snail ___
• Stuff of life
• Double-helix material
• Fingerprint with a twist?