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
1 The lac operon consists of three structural genes, and a promoter, a terminator, regulator, and an operator. 2  The three structural genes are: lacZ, lacY, and lacA.n this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA.