Histone methylation is a process by which methyl groups are transferred to amino acids of histone proteins that make up nucleosomes, which the DNA double helix wraps around to form chromosomes.he fundamental unit of chromatin, called a nucleosome, contains DNA wound around a protein octamer. This octamer consists of two copies each of four histone proteins: H2A, H2B, H3, and H4. Each one of these proteins has a tail extension, and these tails are the targets of nucleosome modification by methylation.
The definition of a prude is a very proper and modest person. An example of a prude is a person who wears a lot of clothing in the summer to cover their bodies because they don't want to show their bare skin.
A person of character is phrase used to describe a person who has a good character, meaning that they are honest and polite and respectful of others, that's all. Good luck!... Generally, it means you allow other people to push you around. It means to take a lot of crap and never complaine. It is just about the worst insult you can receive. It is worse than being called nice.