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meiosis    音标拼音: [mɑɪ'osəs]
n. [细胞核的] 减数分裂

[细胞核的] 减数分裂

meiosis
n 1: (genetics) cell division that produces reproductive cells
in sexually reproducing organisms; the nucleus divides into
four nuclei each containing half the chromosome number
(leading to gametes in animals and spores in plants) [synonym:
{meiosis}, {miosis}, {reduction division}]
2: understatement for rhetorical effect (especially when
expressing an affirmative by negating its contrary); "saying
`I was not a little upset' when you mean `I was very upset'
is an example of litotes" [synonym: {litotes}, {meiosis}]


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  • Meiosis - Wikipedia
    Meiosis ( maɪˈoʊsɪs ⓘ) [a] is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, the sperm or egg cells It involves two rounds of division that ultimately result in four cells, each with only one copy of each chromosome (haploid)
  • Meiosis - Definition, Stages, Function and Purpose - Biology Dictionary
    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
  • Meiosis | Definition, Process, Stages, Diagram | Britannica
    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
  • Meiosis - National Human Genome Research Institute
    Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm) In humans, body (or somatic) cells are diploid, containing two sets of chromosomes (one from each parent)
  • Genetics, Meiosis - StatPearls - NCBI Bookshelf
    In the gametes, a different form of cell division occurs called “meiosis ” The outcome of meiosis is the creation of daughter cells, either sperm or egg cells, through reduction division which results in a haploid complement of chromosomes so that on joining with another sex cell at fertilization a new diploid chromosomal complement is
  • 11. 1: The Process of Meiosis - Biology LibreTexts
    Meiosis is a series of events that arrange and separate chromosomes and chromatids into daughter cells During the interphases of meiosis, each chromosome is duplicated In meiosis, there are two rounds of nuclear division resulting in four nuclei and usually four daughter cells, each with half the number of chromosomes as the parent cell
  • meiosis | Learn Science at Scitable - Nature
    Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells
  • What is Meiosis? The Essential Process Behind Genetic Diversity
    Meiosis is not just a biological process; it is a fundamental mechanism that drives life’s diversity By ensuring the proper distribution of genetic material and introducing new combinations of genes, meiosis guarantees that life on Earth can continue to evolve and adapt
  • Meiosis – Introductory Biology: Evolutionary and Ecological Perspectives
    Gametes fuse with another haploid gamete to produce a diploid cell The nuclear division that forms haploid cells, which is called meiosis, is related to mitosis As you have learned, mitosis is part of a cell reproduction cycle that results in identical daughter nuclei that are also genetically identical to the original parent nucleus
  • Meiosis - an overview | ScienceDirect Topics
    Meiosis is the specialized cell division cycle that produces haploid gametes to enable sexual reproduction Reduction of chromosome number by half requires elaborate chromosome dynamics that occur in meiotic prophase to establish physical linkages between each pair of homologous chromosomes





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