According to the starling law, parasympathetic effects on cardiac rate and contractility include decreasing the rate of contraction and increasing the filling time resulting in a stronger contraction. The Frank-starling law of the heart states that the stroke volume of the heart increases in response to an increase in the volume of blood filling the heart when all other factors remain constant.
DNA replication is the process of making new copies of DNA. Transcription is the process by which DNA is copied (transcribed) to RNA. 2. DNA replication is important for properly regulating the growth and division of cells.