POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Genetically-modified pollen. Conceptual composite image of a coloured scanning electron micrograph (SEM) of maize pollen grains (Zea mays) labelled with biohazard symbols. This may represent genetic modification, which alters the genes of a plant in order to confer desirable characteristics. For example, crop plants may be engineered to be resistant to certain pests or herbicides, or to increase their nutrient content. There is concern over the safety of foods that contain material from GM plants, as well as the possibility of contamination of non-GM crops. Magnification unknown.
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