
Nucleus | Definition, Function, Structure, & Facts | Britannica
Jan 5, 2026 · nucleus, in biology, a specialized structure occurring in most cells (except bacteria and blue-green algae) and separated from the rest of the cell by a double layer, the nuclear …
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 …
Cell Nucleus – Definition, Structure, Function
Oct 8, 2024 · 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, …
The Nucleus - Definition, Structure, and Function - ThoughtCo
May 8, 2025 · The cell nucleus is a membrane-bound structure that contains a cell's hereditary information and controls its growth and reproduction. It is the command center of a eukaryotic …
Nucleus - National Human Genome Research Institute
2 days ago · 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, …
Nucleus: Definition, Structure, Parts, Functions, Diagram
Oct 31, 2023 · The nucleus is the organelle that houses chromosomes. Chromosomes consist of DNA, which contains heredity information and instructions for cell growth, development, and …
What is the nucleus? | MyPathologyReport
The nucleus (plural: nuclei) is a small, specialized structure found inside almost all cells in your body. It holds most of your genetic material, known as DNA, which acts like a set of …
What is a Nucleus? - BYJU'S
What is the nucleus? The nucleus is a double-membraned organelle that contains the genetic material and other instructions required for cellular processes. It is exclusively found in …
What Is the Nucleus? Key Components and Functions
Aug 19, 2025 · The nucleus is a central organelle within many living cells, often likened to the cell’s control center. It plays a central role by housing the genetic material that directs all …
Molecular Expressions Cell Biology: The Cell Nucleus
Nov 13, 2015 · The nucleus is a highly specialized organelle that serves as the information and administrative center of the cell.