1. Education
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

Nucleus

By

Definition:

The nucleus is a membrane bound structure that contains the cell's hereditary information and controls the cell's growth and reproduction. It is commonly the most prominent organelle in the cell.

The nucleus is surrounded by a structure called the nuclear envelope. This membrane separates the contents of the nucleus from the cytoplasm. The cell's chromosomes are also housed within the nucleus. Chromosomes contain DNA which provides the genetic information necessary for the production of other cell components and for the reproduction of life.

Related Terms:

genes, mitochondria, mitosis
  1. About.com
  2. Education
  3. Biology
  4. Biology Dictionary
  5. Genetics Glossary
  6. Nucleus - Definition and Related Terms

©2014 About.com. All rights reserved.