False-colour transmission electron micrograph of a DNA transposable genetic element (a transposon), forming a characteristic stem-&-loop structure. Transposons are discrete segments of DNA that move around chromosomes joining together DNA segments that have no structural or ancestral relationship to each other. Their ability to recombine with dissimilar DNA segments gives rise to mutations, which in turn increases the diversity of genetic material available. They represent a mechanism for evolutionary change among biological systems. Mag: x40,000 at 35mm 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.