# Nucleus --- The **nucleus** of the [[eukaryote|eukaryotic]] cell an [[organelle]] that acts like the Command Center. It stores and transmits information in the form [[DNA]]. Information stroage, replication, and retrieval. ## Structure The nucleus is enclosed within a unique/unsual double-membrane structrue called the **nuclear envelope**. It protects the nucleus from all sorts of diseases, viruses, carcenogens. This nuclear envelope is studded with many highly regulated openeings or **nuclear pores** that functions like a door in an out of the nucleus. mRNA is transported out of the nucleus and into the cytoplasim, and proteins that have been synthesized in the cytoplasm are transported back in. The **nuclear lamina** is comprised of fibrious [[protein|proteins]], and these form a lattice-like sheet that stiffins the nuclear envelope and gives it shape. ___