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.
Pizza Bianca â Rome, Lazio. This type of bread is typical all over Italy, it is only called pizza bianca in Rome and of course the way that it is made and the way that it tastes is different in every region. Bakers will often offer small pieces to children while their parents are buying bread.