Histones play a role in packaging DNA into nucleosomes, and they are the main protein in chromatin. In addition, gene expression can be regulated by histones. Genes that are silenced are bound very tightly to a lot of histones, while those that are active are not. Modifications to histones are referred to as the histone code.
Definition of bolshevism. 1 : the doctrine or program of the Bolsheviks advocating violent overthrow of capitalism.
Some of the major Mexican Stock Exchange listed companies also trade on US stock markets as ADRs. 1  Operations and history of Bolsa Mexicana de Valores (Mexican Stock Exchange) 2  Bolsa Mexicana de Valores SAB de CV (known as BMV) is a modern, vertically integrated group of businesses which controls and manages: