The core of the histones H2A and H2B can also be modified. Combinations of modifications are thought to constitute a code, the so-called histone code. Histone modifications act in diverse biological processes such as gene regulation, DNA repair, chromosome condensation (mitosis) and spermatogenesis (meiosis).
Bread and Circuses. Bread and circuses became the method that the ruling class of ancient Rome used to maintain their power and control of the people. This method kept their sheep fat and happy, even as they fleeced them and sent them off to plunder the free world.
The Colosseum was an all purpose entertainment center. Events that took place there included religious festivals and pageants, the equestrian drills, which were precision riding exhibitions by the Roman cavalry, gladiatorial combats, wild animal hunts, mock naval battles, and public executions. The Colosseum was an all purpose entertainment center.