The Nucleus
Next Generation: MS.LS1.2 MS.LS1.2

The Nucleus

Author: Aaron Mullally

This lesson will describe the structure and function of the nucleus of a cell.

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The Nucleus Overview

Source: Cell image, Public Domain: http://bit.ly/4pOsAN; Human cell nucleus image, Public Domain: http://bit.ly/9DEbvX; Chromatin Structures Image, Creative Commons: http://bit.ly/SWXDuB

Terms to Know

​A form of uncondensed DNA found within the nucleus of the cell.


A condensed form of DNA that occurs when the cell is dividing.


​DNA stores an organism’s genetic information.

Nuclear Envelope

A double membrane that surrounds the nucleus.


A structure found within the nucleus that produces subunits of ribosomes.


​A cell organelle found in eukaryotic cells that houses the DNA and controls activity within the cell.