网站首页  词典首页

请输入您要查询的英文单词：

　

单词 blastocyst
释义
blastocyst
noun[C]
biologyspecialized
uk/ˈblæs.tə.sɪst/us/ˈblæs.tə.sɪst/
ablastula(= the earlystageofdevelopment, consisting of alayerofcellsaround anemptyspace)of theembryoof amammal:
Five to sixdaysafter aneggisfertilizedby asperm, atinyballofcellsdevelopscalled a blastocyst.
The blastocyst cannotsupportlifewithout beingattachedto thewallof auterus.
Related word
blastula
More examples
  • Embryonicstemcellsare taken from a blastocyst - aballofcellsthatdevelopswithin a fewdaysafter anegghas beenfertilizedby asperm.
  • There areethicalissuesraisedby thesetreatments, such as thedisposalofhealthyblastocysts.
  • Thestudyconcernedtheproductionofviablebovineblastocysts invitro.
  • Theylookedat theeffectofmaternalageon earlyhumanembryonicdevelopmentand blastocystformation.
SMART Vocabulary: related words and phrases
Animal reproduction
  • androgen
  • anti-oestrogen
  • asexuality
  • asexually
  • barrenness
  • calf
  • embryology
  • fertility
  • fertilize
  • fetal
  • infertile
  • procreative
  • propagation
  • rebreed
  • remate
  • repopulate
  • reproductive
  • semen
  • spawning ground
  • sterility
See more results »

You can also find related words, phrases, and synonyms in the topics:

Cells
(Definition ofblastocystfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofblastocyst

blastocyst
Maternal undernutrition during the preimplantation period of rat development causesblastocystabnormalities and programming of postnatal hypertension.
From theCambridge English Corpus
Perhaps surprisingly, no regional differences in calcium gradients could be detected around blastocysts.
From theCambridge English Corpus
Investigation into the degree of cell mixing that occurs between the 8-cell stage and theblastocyststage of mouse development.
From theCambridge English Corpus
Those changes continue and progress untilblastocystformation.
From theCambridge English Corpus
The proportion of morulae plus blastocysts obtained was similar among groups.
From theCambridge English Corpus
The proportion of morulae plus blastocysts was not affected by cysteamine concentration or oocyte type.
From theCambridge English Corpus
Culture and transfer of humane blastocysts increases implantation rates and reduces the need for multiple embryo transfers.
From theCambridge English Corpus
In our study, the toxicity of nocodazole on mouse embryo development was determined based on bothblastocystformation and the number of blastomeres.
From theCambridge English Corpus
At the end of culture, the ratio of blastocysts formed was recorded and the number of blastomeres perblastocystwas counted.
From theCambridge English Corpus
Results obtained in this species are somewhat contradictory and in most studies have not taken into account the quality of the blastocysts produced.
From theCambridge English Corpus
The majority of dead blastomeres in such treated mouse blastocysts were apoptotic.
From theCambridge English Corpus
We found that blastocysts exhibit oxygen gradients with maxima twice that surrounding zygotes.
From theCambridge English Corpus
Physiological characterization ofblastocysthatching mechanisms by use of a mouse antihatching model.
From theCambridge English Corpus
Successful piglet production after transfer of blastocysts produced by a modified in vitro system.
From theCambridge English Corpus
However, developmental rates toblastocyststage are still limited.
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/blastocyst##
随便看

　

英汉词典包含213609条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。

　

Copyright © 1999-2024 qbania.com All Rights Reserved
更新时间：2024/12/28 1:00:30