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.
Ancient world. Smeared in mustard, paraded naked - the curious and often cruel treatment of disabled people in Anci. This summerâs special exhibition at the British Museum is an exploration of the life and achievements of the Roman Emperor Hadrian (he who did so much to boost the North England tourist industry).