Related Clues:
- It's in chains
- High-tech ''fingerprint''
- Code of life
- It's shared by identical twins
- CSI concern
- 6-Across evidence
- It can prove kinship
- Father identifier
- Genentech's ticker symbol
- See 106-Across
- Watson's code letters
- Subject of some controversial research
- High-tech "fingerprint"
- Stuff of life
- Double-helix material