3D ultrasound scan of twin foetuses at 10 weeks. Non-identical (dizygotic) twins develop when two separate eggs are released from the ovaries and are fertilised simultaneously. Identical (monozygotic) twins occur when the two cells formed by the first division of a fertilised egg develop independently. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Layyous, Dr. Najeeb |
Bildgröße: | 2808 px × 3110 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |