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
The best-studied examples of operons are from the bacterium Escherichia coli (E. coli), and they involve the enzymes of lactose metabolism and tryptophan biosynthesis. Because the lactose (lac) operon shares many features with other operons, its organization and regulation are described in detail below.ogether, these gene products act to import lactose into cells and break it down for use as a food source. As in other operons, the genes of the lac operon lie along a contiguous stretch of DNA such that their expression can be easily coregulated.