Learn what a nucleus is, how it is structured and what functions it performs in eukaryotic cells. The nucleus contains the genetic material DNA and regulates cell growth, reproduction and protein synthesis. Definition of Nucleus The nucleus is a spherical or disc-shaped double membrane-bound cellular organelle present within the protoplasm of the typical cell which contains the hereditary information and controls the metabolic functions of the cell. Figure: Labelled diagram of Nucleus and its different parts Origin of Nucleus According to the evolutionary viewpoint, the nucleus originated from the nucleoid (proto nucleus). In the nucleoid, DNA remains naked (only chromatin materials) without ... Learn about the nucleus, the central organelle of eukaryotic cells that contains DNA and controls cell processes. Find out its structure, parts, functions, and FAQs. The nucleus is a membrane bound organelle found in the majority of eukaryotic cells. It is the largest organelle of the eukaryotic cell, accounting for around 10% of its volume. It houses the genome, and through translation, transcription and post-transcriptional modification, it co-ordinates the activities of the cell. In this article, we will consider the structure and function of the nucleus.
