Related Clues:

• Brittany, for one
• Breakfast item in old Rome?
• It's found in a pound
• Eggs, in bio labs
• Eggs, to biologists
• Boxer, for one
• Biologist's eggs
• Necessities for pregnancies
• Some cells
• Borzoi, for one
• Offspring in the offing
• See 46-Down
• Avis output
• They're fertile
• Caesar's breakfast order, perhaps