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  2. en.wikipedia.org › wiki › Cell_nucleusCell nucleus - Wikipedia

    The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle.: 171 It has been found that replication happens in a localised way in the cell nucleus. In the S phase of interphase of the cell cycle; replication takes place.

  3. biologydictionary.net › cell-nucleusCell Nucleus (Plant & Animal) - Definition and Function | Biology

    Jul 30, 2017 · The cell nucleus is the organelle that contains most of the DNA in eukaryotic cells. It produces RNA and proteins, and regulates cell activities. Learn about the structure and function of the cell nucleus in plants and animals.

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  5. www.britannica.com › science › nucleus-biologyNucleus | Definition, Function, Structure, & Facts | Britannica

    Apr 16, 2024 · The nucleus is the control centre of the cell that contains the genetic information and regulates the cell activities. Learn about the structure, function, and role of the nucleus in biology from Britannica's editors.

    • The Editors of Encyclopaedia Britannica

  6. www.kenhub.com › en › libraryCell nucleus: Histology, structure and functions | Kenhub

    • Medical Content
    • 24 min
    • Nuclear envelope. As its name suggests, the nuclear envelope surrounds the nucleus, separating it from the cell's cytoplasm. It is a double membrane. Each membrane is a phospholipid bilayer associated with proteins, and the two membranes are divided by 20 to 40 nm of space.
    • Nuclear lamina. The inner nuclear membrane is internally lined by protein filaments meshwork organised in a net-like fashion, called nuclear lamina. The proteins that make up the nuclear lamina are known as lamins, which are intermediate filament proteins.
    • Chromosomes. The DNA of a cell is found within the nucleus. It is organised into units known as chromosomes, each containing a long DNA molecule which is associated with various proteins.
    • Nucleolus. When a nucleus is not dividing, a structure called a nucleolus becomes visible. In fact, it is the most prominent structure within the nucleus.

  7. www.sciencefacts.net › cell-nucleusCell Nucleus: Definition, Structure, & Function, with Diagram

    Feb 4, 2021 · The nucleus is a double membrane-bound organelle that contains the DNA, the genetic material of eukaryotic cells. It controls and coordinates the cell processes, such as metabolism, growth, and division, and also synthesizes ribosomes and regulates gene expression.

  8. www.thoughtco.com › the-cell-nucleus-373362The Nucleus - Definition, Structure, and Function - ThoughtCo

    Nov 6, 2019 · The cell nucleus is the command center of a eukaryotic cell that controls its growth and reproduction. It contains genetic material, regulates protein and ribosome synthesis, and is surrounded by a double membrane called the nuclear envelope.

  9. www.khanacademy.org › a › nucleus-and-ribosomesNucleus and ribosomes (article) | Khan Academy

    Learn how the nucleus and ribosomes work together in eukaryotic cells to produce proteins. The nucleus contains DNA and RNA, while the ribosomes translate RNA into proteins.

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