Related Clues:
- Future aves?
- 39-Across, to Caesar
- Certain cells
- Eggs, to Caesar
- Fraternal twins come from two different ones
- Some germ cells
- Oocytes, eventually
- Eggs (Latin)
- Some gametes
- Fertilization targets
- Fertility clinic topic
- Romans' caviar
- They grow when fertilized
- 57-Across, to Brutus
- In vitro items, perhaps