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meiosis 音標拼音: [mɑɪ'osəs]

n. [細胞核的] 減數分裂

[細胞核的] 減數分裂

WordNet (r) 3.0 (2006) (WordNet)

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}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Meiosis \Mei*o"sis\ (m[-i]*[=o]"s[i^]s), n. [NL., fr. Gr.
mei`wsis, fr. meioy^n to make smaller, from mei`wn. See
{Meionite}.]
1. (Rhet.) Diminution; a species of hyperbole, representing a
thing as being less than it really is; understatement; see
also {litotes}.
[1913 Webster PJC]

2. (Cell Biology) The cellular process by which a diploid
progenitor cell forms haploid gametes, including a
division of one diploid cell into two cells, each with one
of the homologous sets of chromosomes.
[PJC]

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英文字典中文字典相關資料:

Meiosis - Wikipedia
Meiosis occurs in eukaryotic life cycles involving sexual reproduction, consisting of the cyclical process of growth and development by mitotic cell division, production of gametes by meiosis and fertilization
Meiosis: Definition, Stages, Purpose with Diagram
Meiosis is a cell division process where a single (parent) cell divides twice to produce four independent (daughter) cells, each having half the chromosomes as the original cell The term ‘meiosis’ came from the Greek word ‘meiosis’, meaning ‘lessening’
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)
Meiosis: Phases, Stages, Applications with Diagram
Meiosis is a type of cell division in sexually reproducing eukaryotes, resulting in four daughter cells (gametes), each of which has half the number of chromosomes as compared to the original diploid parent cell
Meiosis | Cell division | Biology (article) | Khan Academy
Meiosis, 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
Meiosis | Definition, Process, Stages, Facts | Britannica
Meiosis, also called reduction division, is a specialized type of cell division in germ cells that consists of two successive nuclear divisions, producing four genetically distinct haploid cells (gametes), each with half the number of chromosomes of the original diploid cell
Meiosis - Stages - TeachMePhysiology
Meiosis refers to the specialised form of cell division that produces gametes (sperm and egg cells) It consists of two successive divisions, producing four non-identical haploid daughter cells – each containing a single copy of each chromosome
Meiosis – Introductory Biology
So, in addition to fertilization, sexual reproduction includes a nuclear division, known as meiosis, that reduces the number of chromosome sets
Cell Division - Meiosis - Embryology
Meiosis is the special type of recombinative and reductive cell division occurring only in the generation of the gametes or germ cells (oocyte and spermatozoa)

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