Genome editing is used to make targeted modifications to the genome of eukaryotic cells. (stembook.org)
Endosymbiotic theory, that attempts to explain the origins of eukaryotic cell organelles such as mitochondria in animals and fungi and chloroplasts in plants was greatly advanced by the seminal work of biologist Lynn Margulis in the 1960s. (fossilmuseum.net)
But until now, prions were only seen in the cells of eukaryotic organisms, a group that includes animals, plants and fungi. (scientificamerican.com)