Coloured SEM of sperm on egg during fertilisation
Bildnummer 11874384
| Fertilisation. Coloured scanning electron micro- graph (SEM) of sperm on the surface of a human egg (ovum) during fertilisation. The egg has a spongy protective surface. Sperm are seen attached to it and appear as hair-like structures; each sperm has a head,neck,and a long tail. Here the sperm are attempting to penetrate the thick surface of the egg that attracts them and enables them to attach. The human female usually produces a single large egg,and only one of the millions of male sperm released may penetrate the egg to fuse with the egg nucleus. Once fertilised,the egg begins its process of growth into a human embryo. Magnification: x830 at 6x7cm size. Magnification; x2,650 at 8x10 inch size | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Nikas, Dr. Yorgos |
| Bildgröße: | 3884 px × 4878 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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