Definitions for mitosis
maɪˈtoʊ sɪsmi·to·sis

Princeton's WordNetRate this definition:3.8 / 4 votes

1. mitosisnoun

   cell division in which the nucleus divides into nuclei containing the same number of chromosomes

WiktionaryRate this definition:4.5 / 2 votes

1. mitosisnoun

   The division of a cell nucleus in which the genome is copied and separated into two identical halves. It is normally followed by cell division.

2. Etymology: From Mitosis, from μίτος + -osis, probably in reference to the thread-like chromatin seen during mitosis.

WikipediaRate this definition:0.0 / 0 votes

1. Mitosis

   In cell biology, mitosis () is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei. Cell division by mitosis gives rise to genetically identical cells in which the total number of chromosomes is maintained. Therefore, mitosis is also known as equational division. In general, mitosis is preceded by S phase of interphase (during which DNA replication occurs) and is often followed by telophase and cytokinesis; which divides the cytoplasm, organelles and cell membrane of one cell into two new cells containing roughly equal shares of these cellular components. The different stages of mitosis altogether define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells genetically identical to each other.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are preprophase (specific to plant cells), prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to spindle fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The rest of the cell may then continue to divide by cytokinesis to produce two daughter cells. The different phases of mitosis can be visualized in real time, using live cell imaging. Producing three or more daughter cells instead of the normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce mitotic catastrophe, apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission. Mitosis varies between organisms. For example, animal cells undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, whereas fungi undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus. Most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Most human cells are produced by mitotic cell division. Important exceptions include the gametes – sperm and egg cells – which are produced by meiosis.

ChatGPTRate this definition:0.0 / 0 votes

1. mitosis

   Mitosis is a process of cell division where a single cell divides into two identical daughter cells. Each of these cells contains the same number and type of chromosomes as the original cell. The process includes several stages (prophase, metaphase, anaphase, telophase) and is essential for growth, repair, and general maintenance of an organism.

Webster DictionaryRate this definition:4.0 / 1 vote

1. Mitosisnoun

   see Karyokinesis

2. Etymology: [NL., fr. Gr. a thread.]

WikidataRate this definition:0.0 / 0 votes

1. Mitosis

   Mitosis is the process by which a cell, which has previously replicated each of its chromosomes, separates the chromosomes in its cell nucleus into two identical sets of chromosomes, each set in its own new nucleus. It is a form of nuclear division. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles, and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic phase of the cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell. This accounts for approximately 10% of the cell cycle. Note that, in situations where the process of replicating the chromosomes, or any subsequent step, generates differences between the two otherwise identical sets of chromosomes, the two daughter cells will not be genetically identical. Mitosis occurs only in eukaryotic cells and the process varies in different species. For example, animals undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus. Prokaryotic cells, which lack a nucleus, divide by a process called binary fission.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Mitosis

   A type of CELL NUCLEUS division by means of which the two daughter nuclei normally receive identical complements of the number of CHROMOSOMES of the somatic cells of the species.

Matched Categories

1. • Cell Division

Usage in printed sourcesFrom: 

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How to pronounce mitosis?

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How to say mitosis in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of mitosis in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of mitosis in Pythagorean Numerology is: 5

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=mitosis
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Mitosis
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Mitosis
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/mitosis
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=mitosis
7. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=mitosis