| 单词 | sea urchin |
| 释义 | sea urchin noun[C] uk/ˈsiː ˌɜː.tʃɪn/us/ˈsiː ˌɝː.tʃɪn/asmallseacreaturethatlivesinwaterthat is not verydeep, has a roundshellcoveredwithsharppointslikeneedles, and hasfleshthat can beeaten 海胆 erry Monkman/Nature Picture Library/Nature Picture Library/GettyImages Sea creatures
Examplesofsea urchinsea urchin Proteolysis of the major yolk glycoproteins is regulated by acidification of the yolk platelets inseaurchinembryos. From theCambridge English Corpus In animal systems, studies on the activation ofseaurchinand clam eggs have also found changes in enzyme activity and location. From theCambridge English Corpus Localisation of fluorescently labelled calmodulin in livingseaurchineggs during early development. From theCambridge English Corpus Changing localizations of site-specific surface antiperhaps sequential patterns of gene expression during gens duringseaurchinspermiogenesis. From theCambridge English Corpus Theseaurchinegg is a model for such studies. From theCambridge English Corpus A localized zone of increased conductance progresses over the surface of theseaurchinegg during fertilization. From theCambridge English Corpus For example, inseaurchinoocytes, calciuminduced cortical granule exocytosis leads to the formation of a zygote with a mosaic plasma membrane. From theCambridge English Corpus Characteristics of individual repetitive sequence families in theseaurchingenome studied with cloned repeats. From theCambridge English Corpus Localization and possible role of molecules acetylcholinesterase inseaurchinembryos. From theCambridge English Corpus Good candidates may be the yolk platelets, acidic vesicles and pigment granules, all of which are present inseaurchineggs. From theCambridge English Corpus Ligand-dependent stimulation of introduced mammalian brain receptors alters spicule symmetry and other morphogenetic events inseaurchinembryos. From theCambridge English Corpus Experimental separation of pronuclei in fertilisedseaurchineggs: chromosomes do not organise a spindle in the absence of centrosomes. From theCambridge English Corpus Redundant mechanisms of calcium-induced calcium release underlying calcium waves during fertilization ofseaurchineggs. From theCambridge English Corpus Microinjection of inositol triphosphate activatesseaurchineggs. From theCambridge English Corpus Microtubules are required for completion of cytokinesis inseaurchineggs. 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. |
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