According to the Sankhya philosophy, Prakriti is composed of three Gunas or forces, called Sattva (purity, light, harmony), Rajas (passion, activity, motion) and Tamas (inertia, darkness, inertness, inactivity). Guna means a cord. The Gunas bind the Self with a triple bond.
The lac operon is an inducible operon that utilizes lactose as an energy source and is activated when glucose is low and lactose is present. Learning Objectives Describe the components of the lac operon and their role in its function
In the absence of lactose, the repressor protein encoded by the I gene binds to the lac operator and prevents transcription. Binding of allolactose to the repressor causes it to leave the operator. This enables RNA polymerase to transcribe the three genes of the operon.