Related Clues:

• Polaroid
• Genetic letters
• Part of a cell nucleus
• Gene material, in brief
• Keep out
• One place to hook up the jumper cables
• Chromatin component
• See 5-Down
• Blackball
• See 6-Across
• See 39-Across
• It's positively electric
• Axle, e.g.
• Cell terminal
• Measure