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单词 mitosis
释义
mitosis
noun[U]
biologyspecialized
uk
/maɪˈtəʊ.sɪs/us
/maɪˈtoʊ.sɪs/
pluralmitoses
thetypeofcelldivisionin which onecelldividesinto twocellsthat areexactlythe same, each with the samenumberofchromosomesas theoriginalcell:
有丝分裂（细胞分裂过程，一个细胞分裂成两个相同的细胞，每一个都含有与母细胞相同数目的染色体）
Ourskincellsarecontinuallyreplacedby mitosis.我们的皮肤细胞不断地通过有丝分裂更新。
Compare
meiosis
SMART Vocabulary: related words and phrases
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Related word

mitotic
(Definition ofmitosisfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

mitosis| American Dictionary

mitosis
noun[U]
us/mɑɪˈtoʊ·sɪs/
biology
thetypeofcelldivisionin which onecelldividesinto twocellsexactlythe same, each with the samenumberofchromosomes(=cellstructures)as theoriginalcell
(Definition ofmitosisfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofmitosis

mitosis
This nucleus gives rise at the first embryonicmitosisto 20 bivalents which coexist with 20 somatic chromosomes originating from the female pronucleus.
From theCambridge English Corpus
Cells undergoingmitosisappeared spherical, covered with blebs and anchored to the substrate by retraction fibres.
From theCambridge English Corpus
In this context, it is important to point out that the first divisions after karyogamy tend to deviate from the common pattern ofmitosis.
From theCambridge English Corpus
Cycling cytoplasmic factors that promotemitosisin the cultured 2-cell mouse embryo.
From theCambridge English Corpus
These fragments appeared to be generated through the destruction of nuclei upon entry tomitosis.
From theCambridge English Corpus
In the present study we have found that the sister blastomeres of tetraploid embryos reconstructed by fusion can also entermitosisasynchronously.
From theCambridge English Corpus
We conclude, therefore, that the replication-sensitive checkpoints that operate duringmitosisare absent or inactive during meiosis.
From theCambridge English Corpus
We cannot exclude the possibility that the spindle assembly checkpoint acts during the firstmitosis.
From theCambridge English Corpus
It would be more accurate to say that the centre was undergoing a kind of spatialmitosis.
From theCambridge English Corpus
In normal human cells, the mutant is not present as an endogenous enzyme; the wild-type enzyme is only expressed beforemitosis.
From theCambridge English Corpus
When pronuclear heterokaryons enter the firstmitosis, their nuclei condense and metaphase chromosomes are visualised.
From theCambridge English Corpus
The other two smaller cells top of the figure have not startedmitosisyet.
From theCambridge English Corpus
We focused on the regulation of the first and the secondmitosis.
From theCambridge English Corpus
This mechanism is most clearly manifested during the firstmitosis.
From theCambridge English Corpus
Duringmitosisthe endoplasmic reticulum is known to aggregate within the asters of the mitotic apparatus.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/mitosis##
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更新时间：2025/11/4 19:00:51