Related Clues:

• DNA segment
• Siskel or Kelly
• Part of a code
• Hackman of "The Poseidon Adventure"
• Means of inheritance
• Barry or Tunney
• Eugene, for short
• Pool unit?
• Biological inheritance
• One in a pool
• One that's passed along
• Kelly of song and dance
• DNA bit
• Heredity component
• Heredity bit