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.
Dinner was the one meal the Romans did eat, even if it was at a different time of day. In the UK the heyday of dinner was in the Middle Ages. It was known as cena, Latin for dinner. The aristocracy ate formal, outrageously lavish dinners around noon.unch. The terminology around eating in the UK is still confusing. For some lunch is dinner and vice versa. From the Roman times to the Middle Ages everyone ate in the middle of the day, but it was called dinner and was the main meal of the day.