. Genetically modified crops. Researcher comparing the growth of genetically modified sugar beet plants (Beta vulgaris) with that of normal rape plants (Brassica napus). The beet plants (pale green) are seen growing healthily beside the withered rape (darker green, growing in patches). This field has been sprayed with a weedkiller. Modification of the beet's DNA (deoxyribonucleic acid) has given it resistance to the weedkiller, while the rape has no such protection. Altering DNA, which contains the genetic code, may be used to impart many beneficial properties to crops. Photographed in Kings Lynn, 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.