Related Clues:

• Genetic identifier
• "CSI" evidence
• ___ sample
• Hereditary stuff
• Cloner's raw material
• Letters from your folks?
• Genetic strand
• Crime lab evidence
• Legacy from an X and Y
• Evidence type, briefly
• Genetic material, for short
• Personal code
• 17-Down material: Abbr.
• Genome material
• Hi-tech ID