| 词汇 | zygote |
| 释义 | zygote noun[ C ] biology specializeduk /ˈzaɪ.ɡəʊt/ us /ˈzaɪ.ɡoʊt/ the cell that is formed when a female reproductive cell and a male reproductive cell join受精卵;合子 Animal reproduction androgen anti-oestrogen asexuality asexually barrenness calve fertile gamete impregnate out-reproduce ovulate panmictic panmixia procreate procreation procreative rut semen spawn sterile You can also find related words, phrases, and synonyms in the topics: Cells zygote | American Dictionaryzygote noun[ C ] us/ˈzɑɪ·ɡoʊt/ biology the cell that will develop into a baby person or animal and that is created when a male and female gamete (= cell from each parent) unite Examples of zygotezygote Most zygote isolations were completed using cellulase and pectinase because the enzymes substantially improved this process. In five zygotes development was delayed and altered. Here we experimentally enlarged blastomeres to zygote size by enucleation and fusion with blastomeres that were in developmental synchrony with the recipient. In these models, inbreeding depression is assumed to affect zygote-to-adult viability only. The survival of a zygote was determined by generating a random number and comparing it with the relative viability value of the zygote. Only in about 5% of zygotes evaluated were we unable to detect replicating nuclei at all. In practice, zygote frequencies cannot be observed directly. The study forms part of a broader investigation aimed at developing alternative ways of producing human zygotes in vitro. During early events of embryonic development, activated zygotes were compared to in vitro fertilized ones. The bright spot at the top of the zygote corresponds to injury at the injection site. These injections interfere with the normal process of chromatin decondensation/recondensation occurring in the zygote after fertilisation. One or two minutes after the last exocytotic events the ridges disappear and the surface of the zygote becomes smooth. The transformation of a zygote into an embryo adheres both to nature and to nurture: not only genetics but also environment determines the outcome. Independently of the number of pronuclei found, -tubulins were uniformly distributed throughout the cytoplasm of the abnormal zygotes. We found that blastocysts exhibit oxygen gradients with maxima twice that surrounding zygotes. 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. |
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