False-colour transmission electron micrograph (TEM) of lambda bacteriophages (phages), a type of virus that only infects bacterial cells. Lacking any reproductive machinery themselves, they infect bacteria & commandeer their cellular apparatus for purposes of replication. The genetic material (DNA) of the phage is contained within the head, an icosahedral figure (some coloured green, others orange). Each head is attached to a (linear) tail, which in this species is noncontractile. Phages of human faecal bacteria may cause malabsorption if released in sufficient quantities. Magnification: x18,000 at 6x7cm size.

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.