| 词汇 | example_english_donor-nucleus |
| 释义 | donor nucleuscollocation in Englishmeanings of donorand nucleusThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with nucleus or donor. donor noun[C] uk /ˈdəʊ.nər/ us /ˈdoʊ.nɚ/ a person who gives some of their blood or a part of their body to help someone who ... See more at donor nucleus noun[C] uk /ˈnjuː.kli.əs/ us /ˈnuː.kli.əs/ physicsspecialized the central part of an atom, usually made up of protons ... See more at nucleus Examples of donor nucleusThese 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. A number of nuclear transplantation studies indicate that, for interaction between cytoplast and karyoplast to occur, so-called remodelling of the donornucleus is essential. A number of nuclear transplantation studies indicate that, for interaction between cytoplast and karyoplast to occur, a so-called remodelling of donornucleus is essential. The phylogenetic distance between recipient cytoplasm and donornucleus could be partly responsible for these results. This is probably important to further development when a donornucleus is inserted in the egg. The second type of cell used as a source of donornucleus was the fibroblast, which represents a fully differentiated somatic cell dividing mitotically. But in these cases, cellcycle asynchrony between somatic donornucleus and resident nuclear material may interfere negatively with developmental ability to blastocyst stage. These problems are considered to be the result of incomplete reprogramming of the donornucleus, which leads to abnormal expression of development-related gene expression. Liveborn offspring are considered to be genetically cloned animals with traits derived from the genome of the donornucleus. The donornucleus also seems to be the driving force in respect of the decision as to which form of cell cycle progression the resulting hybrid will proceed with. The most likely reason is insufficient reprogramming of the donor nuclei. The molecular mechanism for reprogramming of the donor nuclei following somatic cell nuclear transfer has not been fully elucidated. Both freshly prepared cells and passage cultured cells could be used as donor nuclei for animal somatic cloning. The mechanism of gene reprogramming of donor nuclei following somatic cell nuclear transfer remains unclear. Cells with a smooth surface or a rough surface were compared as donor nuclei for nuclear transfer. Nevertheless, how donor nuclei transferred into ooplasts are reprogrammed so that totipotency is restored remains unknown. Mice are usually cloned by direct injection of donor nuclei into enucleated oocytes. 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. Want to learn more? Go to the definition of donor Go to the definition of nucleus See other collocations with nucleus See other collocations with donor |
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