Related Clues:

• It has four bases
• Biochemist's letters
• Hereditary letters
• Cell "messenger," briefly
• What a retrovirus contains
• Evidence gathered by a CSI team
• Stranded stuff in cells
• Genetic marker, abbr.
• CSI sample
• 'Messenger' molecule
• Modernday evidence
• Bio class letters
• Type of forensic evidence
• Biological identifier
• Living cell constituent: Abbr.