In a study on eukaryotic and bacterial parasites, a duo of researchers at the University of Oxford has detected differences in DNA sequences that could be attributed to the composition of their food. Trypanosoma cruzi, a parasite of the order Kinetoplastida. Image credit: Myron Schultz / CDC. “Organisms construct their DNA using building blocks they get from food. Our hypothesis was that the composition of this food could alter an organism’s DNA,”...