Deep in hydrothermal vents beneath the Arctic Ocean, scientists have discovered an organism that sheds fresh light on the evolutionary link between simple and complex cellular life. The microbe and ...

Eukaryotes are organisms whose cells possess a nucleus enclosed within a cell membrane, making up one of the three domains of life, Eukaryota. They include multicellular organisms such as plants, ...

DNA methylation refers to the process of adding a methyl group to specific regions of DNA. This process can bring about changes in the activity of DNA without changing the sequence of nucleotides.