Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Egg activation"”.
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Cholesterol and egg activation
… germinal vesicle breakdown; however, SR-BI KO eggs, which had accumulated excess cholesterol in vivo, spontaneously activated; they escaped metaphase II (MII) arrest and progressed to pronuclear, metaphase III and anaphase/telophase III stages. Eggs from fertile, wild-type mice were activated …
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Investigating the calcium wave and actin dynamics at Drosophila egg activation
Egg activation is a series of highly coordinated processes that prepare the mature oocyte for embryogenesis. Typically associated with fertilisation, egg activation results in the resumption of the cell cycle, expression of maternal mRNAs and cross-linking of the vitelline membrane. While some …
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Calcium and actin coordinate egg activation and the metaphase-anaphase transition in Drosophila oocytes
Egg activation is the process through which the mature oocyte is prepared for embryogenesis, consisting of key cellular changes including, but not limited to: i) Physical and chemical changes to the oocyte’s outer covering; ii) The release of meiotic arrest, enabling the formation of a haploid …
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The oocyte-to-embryo transition : regulation of oocyte maturation and egg activation in Drosophila
… the second arrest in metaphase I is released by egg activation. This thesis explores mechanisms controlling these two processes. First, the putative role of the Deadhead (DHD) thioredoxin in Drosophila female meiosis is examined. Possible roles that DHD may play in DNA replication, ROS/RNS redox …
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Investigating the role of egg-3 by characterizing the egg-3(as40) phenotype in C. elegans
Egg activation is a process whereby a mature oocyte transitions from meiosis to mitosis and changes to a new cellular state that supports embryogenesis. In C. elegans, egg activation is regulated by a complex of proteins which include EGG-3, EGG-4, EGG-5, CHS-1 and MBK-2. EGG-3 is a member of the …
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Investigating the regulation of processing bodies in Drosophila melanogaster oocytes
… bodies and remains translationally silent. Upon egg activation, P bodies disassemble, releasing bcd into the cytoplasm where it associates with ribosomes and is translated. P body material properties are essential for this temporal control, as shown by disruptions to their properties can lead to …
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Studies on Fertilization in Vitro in Mammals
… electron microscopy, the behavior of the sperm-egg interaction: (a) during the normal fertilization process; and (b) when the fertilization process was modified chemically and physically. Chemical modification of the fertilization process entailed artificially fusing the sperm to the egg, …