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.
Mexican Stock Exchange. The Mexican Stock Exchange (Spanish: Bolsa Mexicana de Valores), commonly known as Mexican Bolsa, Mexbol, or BMV, is the only stock exchange in Mexico. It is the second largest stock exchange in Latin America, only after Brazil's BM&F Bovespa. It is also the fifth largest stock exchange in the Americas.