Fertilised egg. Coloured scanning electron micrograph (SEM) of sperm clustered on the surface of a fertilised human egg (ovum). The round egg (green) is at the zygote stage. Although the egg is already fertilised sperm are still attached to it (yellow hair-like structures). Each sperm has a head and a long tail. Coloured blue are the cumulus oophorus cells. These metabolically active cells provide the correct microenvironment for fertilisation. Magnification: x650 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / PROFESSORS P.M. MOTTA & S. MAKABE |
Bildgröße: | 5140 px × 5347 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |