Fertilisation, SEM

Fertilisation, SEM

P648/0188 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 36.6MB

Downloadable file size: 2.5MB

Price image Pricing

Please login to use the price calculator


Caption: Fertilisation. Coloured scanning electron micrograph (SEM) of sperm (blue) attempting to penetrate a human egg (red). Each sperm (spermatozoa) has a rounded head and a long tail with which it swims. Women usually release one egg (ovum) per month, whereas men release millions of sperm in each ejaculation. Only one of these sperm can penetrate the egg's thick outer layer (zona pellucida) and fertilise it. Fertilisation occurs when the sperm's genetic material (deoxyribonucleic acid, DNA) fuses with the egg's DNA. When this occurs the egg forms a barrier to other sperm. Magnification: x650 when printed 10 centimetres wide.

Release details: Model release not required. Property release not required.

Keywords: beginning, beginnings, biological, biology, cell, cells, circle circles, coloured, egg, false-colour, false-coloured, female, fertilisation, fertilising, fertilization, fertilizing, gamete, gametes, head, images, magnified image, male, microscopic photos, ovum, penetrate, penetrating, penetration, reproduction, round shape, rounded circular, scanning electron micrograph, scanning electron microscope, sem, sex cell, sexual reproduction, sperm, spermatazoa, spermatozoan, subjects, tail, zona pellucida

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.