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Meiosis - Definition, Stages, Function and Purpose | Biology …
https://biologydictionary.net/meiosis/
webDec 8, 2016 · Meiosis is the process in eukaryotic, sexually-reproducing animals that reduces the number of chromosomes in a cell before reproduction. Many organisms package these cells into gametes, such as egg and sperm. The gametes can then meet, during reproduction, and fuse to create a new zygote.
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Meiosis | Cell division | Biology (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/heredity/meiosis-and-genetic-diversity/a/phases-of-meiosis
webMeiosis, on the other hand, is used for just one purpose in the human body: the production of gametes—sex cells, or sperm and eggs. Its goal is to make daughter cells with exactly half as many chromosomes as the starting cell.
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Meiosis review (article) | Meiosis | Khan Academy
https://www.khanacademy.org/science/high-school-biology/hs-reproduction-and-cell-division/hs-meiosis/a/hs-meiosis-review
webThe purpose of meiosis is to produce gametes, or sex cells. During meiosis, four daughter cells are produced, each of which are haploid (containing half as many chromosomes as the parent cell). Stages of meiosis. Meiosis contains two separate cell divisions, meaning that one parent cell can produce four gametes (eggs in females, sperm in males).
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Meiosis - Wikipedia
https://en.wikipedia.org/wiki/Meiosis
webMeiosis ( / maɪˈoʊsɪs / ⓘ; from Ancient Greek μείωσις (meíōsis) 'lessening', since it is a reductional division) [1] [2] is a special type of cell division of germ cells and apicomplexans in sexually-reproducing organisms that produces the gametes, the sperm or egg cells.
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Meiosis | Definition, Process, Stages, & Diagram | Britannica
https://www.britannica.com/science/meiosis-cytology
webMar 8, 2024 · meiosis, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or sex cells, each possessing half the number of chromosomes of the original cell. A brief treatment of meiosis follows. For further discussion, see cell: Cell division and growth.
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Meiosis Definition, Diagram, Steps, and Function
https://sciencenotes.org/meiosis-definition-diagram-steps-and-function/
webOct 21, 2023 · Purpose: Meiosis: Produces gametes (sperm and egg cells in animals; pollen and ovules in plants) for sexual reproduction. Mitosis: Facilitates growth, repair, and asexual reproduction by producing identical daughter cells. Number of Divisions: Meiosis: Occurs in two consecutive divisions – Meiosis I and Meiosis II. Mitosis: Involves only one ...
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meiosis | Learn Science at Scitable - Nature
https://www.nature.com/scitable/definition/meiosis-88/
webMeiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for...
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Meiosis - Function, Phases and Examples - Biology Online
https://www.biologyonline.com/dictionary/meiosis
webMay 30, 2022 · Meiosis is a form of cell division in sexually reproducing organisms wherein two consecutive nuclear divisions (meiosis I and meiosis II) occur without the chromosomal replication in between, leading to the production of four haploid gametes, each containing one of every pair of homologous chromosomes (that is, with the maternal and paternal chr...
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15.8: Meiosis - Biology LibreTexts
https://bio.libretexts.org/Bookshelves/Cell_and_Molecular_Biology/Book%3A_Cells_-_Molecules_and_Mechanisms_(Wong)/15%3A_Cell_Cycle/15.08%3A_Meiosis
webDec 30, 2022 · The purpose of meiosis, and its primary difference with mitosis, is not generating daughter cells that are exact replicates, but generating daughter cells that only have half the amount of genetic material as the original cell. Let us take a look at this situation selfishly: meiosis in human beings.
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Meiosis, Genetic Recombination, and Sexual Reproduction
https://www.nature.com/scitable/topicpage/meiosis-genetic-recombination-and-sexual-reproduction-210/
webFigure Detail. Meiosis represents a survival mechanism for some simple eukaryotes such as yeast. When conditions are favorable, yeast reproduce asexually by mitosis. When nutrients become...
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