Nuclei

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Nuclei

Nuclei (pronounced: noo-klee-eye) is the plural form of nucleus, which is a central and most important part of an object, movement, or group, forming the basis for its activity and growth. In the context of biology, a nucleus is a specialized structure occurring within cells, and is the control center of the cell.

Etymology

The term "nucleus" comes from the Latin word 'nucleus' or 'nuculeus', meaning 'little nut' or 'kernel'. In the mid-18th century, biologists adopted the term to describe the central part of a cell.

Related Terms

  • Cell (biology): The basic structural, functional, and biological unit of all known organisms. A cell is the smallest unit of life.
  • Chromosomes: Thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
  • DNA: Deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
  • Protein: Large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells and organisms, and transporting molecules from one location to another.
  • Mitosis: A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

See Also

External links

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