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.
Streptococcus bovis. Streptococcus gallolyticus, formerly Streptococcus bovis (S. bovis) is a species of Gram-positive bacteria that in humans is associated with endocarditis and colorectal cancer. S. bovis is commonly found in the alimentary tract of cattle, sheep, and other ruminants, and may cause ruminal acidosis or feedlot bloat.