(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.
Lift, trust, drag and gravity is the Newtons first law of Motion Newton's laws of motion are: 1) Every object in a state of motion will remain in that state unless and exter â¦ nal force is applied.2) Acceleration is produced when a force acts on a mass.nswer: #1) Inertia: An object in motion tends to stay in motion unless acted upon by an outside force. An object at rest tends to stay at rest unless acted upon by an outside force. #2) Constant Acceleration: The relationship between and it's acceleration and the applied force is stated by F=ma.