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.
Emperor Titus begun its construction in 70 AD and his son Titus competed it in 80 AD. Titus's younger brother and successor, Domitian, made further modification between 81 and â¦ 86 AD. These emperors belonged to the Flavian dynasty; hence it was called the Flavian amphitheatre. One of the major tourist destinations in Rome is the Colosseum, the ruins of the ancient amphitâ¦. 2  Visiting the Colosseum in Rome, Italy The Colosseum, located in Rome, Italy, is one of the most visited monuments in Europe.