A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

(A-D) Models that propose the origin of a nucleus-bearing but amitochondriate cell first, followed by the acquisition of mitochondria in a eukaryotic host. (E-G) Models that propose the origin of ...

Planctomycetes challenge our concept of the bacterial cell and of a prokaryote as a cell structure type, as well as our ideas about origins of the eukaryote nucleus. Planctomycetes Are Important ...

Ten years ago, nobody knew that Asgard archaea even existed. In 2015, however, researchers examining deep-sea sediments discovered gene fragments that indicated a new and previously undiscovered form ...

“This is the most exciting and important paper on big questions about eukaryotic origins and the tree of life in years,” said evolutionary biologist Jeffrey Palmer of Indiana University, Bloomington, ...

Derelle et. al., "Genome analysis of the smallest free-living eukaryote Ostreococcus tauri unveils many unique features," Proc Natl Acad Sci, 103:11647-52, 2006. (Cited in 74 papers) The study: French ...

A figure of the 80S ribosome structure. This image relates to an article that appeared in the Nov. 26, 2010, issue of Science, published by AAAS. The study, by Dr. Adam Ben-Shem at IGBMC (Institut ...