Molecular biology - Wikipedia Molecular biology məˈlɛkjʊlər is a branch of biology that seeks to understand the molecular structures and chemical processes that are the basis of biological activity within and between cells It is centered largely on the study of nucleic acids (such as DNA and RNA) and proteins
Molecule - Wikipedia In molecular sciences, a molecule consists of a stable system (bound state) composed of two or more atoms Polyatomic ions may sometimes be usefully thought of as electrically charged molecules