For example, biochemical reactions in a cell's ... of whole organelles as these structures move within cells. Of all eukaryotic organelles, the nucleus is perhaps the most critical.

it has been of particular importance to scientists who study the regulation of eukaryotic gene expression, and its function is well understood. For example, researchers know that RNA pol II can ...

Protein synthesis refers to the process by which cells construct proteins. It's a fundamental cellular mechanism for all living organisms, as proteins carry out enzymatic activities, structural ...

Genetic material DNA in a nucleus, plasmids are found in a few simple eukaryotic organisms. DNA is a single molecule, found free in the cytoplasm; additional DNA is found on one or more rings ...

Scientists propose that the eukaryotic branch of this family tree formed when two prokaryotes, an ancient bacterium and archaeal cell, merged, forming a symbiotic relationship maintained over time. 1 ...