define nucleus - EAS

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  1. Từ điển

    Tra cứu
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    nucleus
    [ˈnjuːklɪəs]
    DANH TỪ
    nucleus (danh từ) · nuclei (danh từ số nhiều)
    1. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
      "the nucleus of a British film-producing industry"
      từ đồng nghĩa:
      core · centre · central part · most important part · heart · nub · hub · middle · midpoint · eye · kernel · focus · focal point · pivot · crux · navel · omphalos
    2. physics
      the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
      • biology
        a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
      • anatomy
        a discrete mass of grey matter in the central nervous system.
      • astronomy
        the solid part of a comet's head.
    GỐC
    mid 17th century (denoting the solid part of a comet's head): from Latin, literally ‘kernel, inner part’, diminutive of nux, nuc- ‘nut’.
    Dịch nucleus sang
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  2. Vocabulary quiz
  3. What is a Nucleus?- Structure and Function of Nucleus

    https://byjus.com/biology/the-nucleus

    01/12/2017 · A nucleus is defined as a double-membraned eukaryotic cell organelle that contains the genetic material. A nucleus diagram highlighting the various components. Moreover, only eukaryotes have the nucleus, prokaryotes have the nucleoid

    • Thời gian đọc ước tính: 4 phút
    • Thời lượng Video: 7 phút
  4. Nucleus Definition & Meaning - Merriam-Webster

    https://www.merriam-webster.com/dictionary/nucleus

    Definition of nucleus. 1 a : the small bright body in the head of a comet. b : the small brighter and denser portion of a galaxy (see galaxy sense 1b) 2 : a central point, group, or mass about which …

  5. Nucleus - Genome.gov

    https://www.genome.gov/genetics-glossary/Nucleus

    A nucleus is a membrane-bound organelle that contains the cell's chromosomes. Pores in the nuclear membrane allow for the passage of molecules in and out of the nucleus.

  6. Nucleus Definition & Meaning | Dictionary.com

    https://www.dictionary.com/browse/nucleus

    Nucleus definition, a central part about which other parts are grouped or gathered; core: A few faithful friends formed the nucleus of the club. See more.

  7. Nucleus - definition

    https://neuroscientificallychallenged.com/glossary/nucleus

    Nucleus - definition. a collection of neurons that are thought to work together in performing certain functions. For example, the nucleus accumbens consists of a large number of distinct neurons, but together these neurons are thought to play an important role in …

  8. The Nucleus - Definition, Structure, and Function

    https://www.thoughtco.com/the-cell-nucleus-373362

    10/07/2008 · Updated on November 06, 2019. 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 cell and is usually the …

    • Nghề nghiệp: Biology Expert
  9. Nucleus - Definition, Structure & Function, Cellular vs ...

    https://www.microscopemaster.com/nucleus.html

    The nucleus is a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms. As such, it serves to maintain the integrity of the cell by facilitating transcription and replication processes. It's the largest organelle inside the cell taking up …

  10. Nucleus - Cell Nucleus | Nucleus Structure and Functions

    https://www.vedantu.com/biology/nucleus

    The nucleus is an organelle that consists of the genetic information for that organism. In an animal cell, the nucleus is located in the central place of the cell. Likewise, in the plant cell, the nucleus is located more on the periphery due to the large …

    • Thời gian đọc ước tính: 8 phút
    • NUCLEUS | meaning in the Cambridge English Dictionary

      https://dictionary.cambridge.org/dictionary/english/nucleus

      nucleus definition: 1. the central part of an atom, usually made up of protons and neutrons 2. the part of a cell that…. Learn more.

    • Cell nucleus - Wikipedia

      https://en.wikipedia.org/wiki/Cell_nucleus

      In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel or seed) is a membrane-bound organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many. The main structures making up the nucleus are the nu…

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