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 Romans loved gladiatorial  combats. It was the biggest arena in the Roman Empire. Its real  name was Flavian Amphitheatre and it was named after the emperors  of the Flavian dynasty who built it. Colosseum is a nickname. 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.