The polycomb complex and trithorax complex are examples of which of the followin
ID: 52854 • Letter: T
Question
The polycomb complex and trithorax complex are examples of which of the following?
Genetic modification complexes which methylate DNA
Epigenetic modifer complexes which methylate histones
Nuclear pore complexes which phosphorylate the CTD of RNA Pol II
Preinitiation complexes
Genetic modification complexes which methylate DNA
Epigenetic modifer complexes which methylate histones
Nuclear pore complexes which phosphorylate the CTD of RNA Pol II
Preinitiation complexes
Explanation / Answer
The polycomb complex and Trithorax complex are examples of epigenetic modifier complexes which methylate histones. Polycomb complex proteins are involved in gene silencing and Trithorax complex proteins are involved in gene activation. Trithorax proteins activate the gene by trimethylating the Lysine 4 residue of histone H3.