Nucleus | Definition, Function, Structure, & Facts | Britannica
The nucleus, in biology, is a specialized structure occurring in eukaryotic cells and separated from the rest of the cell by a nuclear membrane. The nucleus contains the cell’s genetic material and controls and regulates its activities, including metabolism and cell division.

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Cell nucleus - Wikipedia
The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expression. Because the nuclear envelope is impermeable to large molecules, nuclear pores are required to regulate nuclear transport of molecules across the envelope.

Cell Nucleus - Definition, Structure, Function
The nucleus is a large, membrane-bound organelle in eukaryotic cells that contains the cell’s genetic material in the form of DNA. Its primary role is to regulate gene expression, mediate replication, and coordinate cell activities like growth and metabolism.

Nucleus: Definition, Structure, Parts, Functions, Diagram
The nucleus is the organelle that houses chromosomes. Chromosomes consist of DNA, which contains heredity information and instructions for cell growth, development, and reproduction.

Nucleus - National Human Genome Research Institute
The nucleus is one of the most obvious parts of the cell when you look at a picture of the cell. It's in the middle of the cell, and the nucleus contains all of the cell's chromosomes, which encode the genetic material.

NUCLEUS Definition & Meaning - Merriam-Webster
The meaning of NUCLEUS is the small bright body in the head of a comet. How to use nucleus in a sentence.

Cell Nucleus: Definition, Structure, & Function, with Diagram
It is the most important and defining feature of all higher organisms, including plant and animal cells, whose main function is to control and coordinate the functioning of the entire cell. The word ‘nucleus’ (plural: nuclei) is derived from the Latin word ‘ nucleus ‘, meaning ‘kernel’ or ‘seed’.

Nucleus - Wikipedia
This disambiguation page lists articles associated with the title Nucleus. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.

Nucleus | The Histology Guide
Nucleus What is the nucleus? The nucleus is found in the middle of the cells, and it contains DNA arranged in chromosomes. It is surrounded by the nuclear envelope, a double nuclear membrane (outer and inner), which separates the nucleus from the cytoplasm. The outer membrane is continuous with the rough endoplasmic reticulum.