Pirates were the kings of the seas in the 17th and 18th centuries, apart from Mary Read and Anne Bonny who were the Queens of the ocean! See how much you know about one of the most well known pirates - Blackbeard.
Nucleosomes: Structure and Function. Abstract. The structure of the nucleosome core particle, the basic repeating unit in eukaryotic chromatin, allows us to view the role of histones in regulating transcription, and in assembling specialized chromatin domains in a structural context.
The parts of the nucleus reflect its functions. Most of the time, the entire nucleus is separated from the rest of the cell by a double-layered nuclear envelope. This membrane is covered with pores that regulate the movement of molecules in and out of the nucleus. Inside the nucleus, the nucleolus produces ribosomes, which make proteins for the cell.