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Images Dated 7th December 1999

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 12 pictures in our Images Dated 7th December 1999 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Soccer - UEFA Champions League - Group D - Lazio v Chelsea
Chelsea Football Club

French Polynesia, Tahiti, Turquoise water and blue sky; Bora Bora, Motu Island in
Design Pics

Computer artwork of human sperm fertilising an egg
Science Photo Library

Lego model and and its constructors
Science Photo Library

Computer artwork of woman developing kyphosis
Science Photo Library

Coloured TEM of three adenoviruses
Science Photo Library

The Innes brothers - 1999 Varsity Match
Colorsport Images

Angus Innes - 1999 Varsity Match
Colorsport Images

Owls Clover & Cholla Cactus (Orthocarpus purpurascens) Organ Pipe Natl Mon
Animals Animals

Black Mamba - venomous (Dendroaspis polylepis) East Africa
Animals Animals

Beach, North of Punta Allen
Animals Animals

Gold in Quartz White Hill Mine Spotsylvania Co., VA
Animals Animals

Featured 7 Dec 1999 Print

Computer artwork of human sperm fertilising an egg

Sperm fertilising egg. Computer illustration of sperm cells (white) approaching a human egg (pink), before one of the sperm fertilises it. Women usually produce one large egg (ovum), whereas men release some 300 million much smaller sperm (spermatozoa) which travel with whiplash movements of their tails through the uterus to reach the egg. A few hundred sperm survive this journey and encounter the egg in the fallopian tube. Only one sperm can penetrate the egg's thick outer layer (zona pellucida) and fertilise it by fusing with its DNA (deoxyribonucleic acid) genetic material. When this occurs, the egg membrane forms a barrier to other sperm