Although most DNA is packaged in chromosomes within the nucleus, mitochondria also have a small amount of their own DNA. This genetic material is known as mitochondrial DNA or mtDNA. Mitochondria (illustration) are structures within cells that convert the energy from food into a form that cells can use.
Diction â A speakerâs (or authorâs) word choice. This term may also refer to the general type or character of language used in speech or in a work of literature.
Definition. Language is a human system of communication that uses arbitrary signals, such as voice sounds, gestures, and/or written symbols. The study of language is called linguistics.Linguists (that is, specialists in the study of language) have defined language in many different ways.efinition. Language is a human system of communication that uses arbitrary signals, such as voice sounds, gestures, and/or written symbols. The study of language is called linguistics.