. Human genome research. Researcher preparing DNA for replication for research for the human genome project. The machines here replicate DNA to workable amounts using a type of polymerase chain reaction (PCR). DNA (deoxyribonucleic acid) is the substance which controls every character- istic of an organism. It is made up of two chains linked by bases. Specific sequences of bases are called genes, each of which performs a specific task. The human genome project aims to find the base sequence of all the genes in human DNA. This will allow for improved drug design and a greater understanding of genetic diseases. This is being done at the Sanger Centre in Cambridge, England. MODEL RELEASED

Photo website with Rights Managed and Royalty Free stock photos, images, illustrations and footage available for download immediately for commercial and editorial uses. Aflo is a leading independent supplier and producer of stock pictures and visual content. Search and find high quality images and video for design, print, web-use and publishing. Buy photos from our extensive collection of model released and property released sports images. Search some of the most beautiful travel and landscape pictures from our own photographers and license from our large collection of content, modern and archive, focusing on Japan. We provide free research. Register for personal account management and for full use of our Stock Photography website and start to download images now.