(1) (genetics) A segment of DNA where the repressor binds to, thereby preventing the transcription of certain genes. (2) (surgery) The one performing surgical procedures. (Genetics) In the Operon Model, the operator is the gene in which a repressor binds. This results in the prevention of the RNA polymerase from binding to it, thus, preventing the expression of certain genes in the operon unit. Word origin: Latin operÄ ( rÄ« ) (to work, effect).
Newton's first law states that an object at rest will stay at rest unless acted on by an unbalanced external force.. This concept is commonly referred to as inertia and was first hypothesized by Galileo Galilei in the late 1500s.
I think inertia is a powerful idea.The tendency of a body to resist any change in its motion (speed or direction).The other words to resist any change in its acceleration is called its inertia. Mass can be thought of as a measure of a bodyâs inertia.Inertia means reluctance to change. Inertia reduces a rate of change but cannot stop it. The inertia is the Newton's first law.