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The union of gametes of opposite sexes during the process of sexual reproduction to form a zygote. It involves the fusion of the gametic nuclei (karyogamy) and cytoplasm (plasmogamy). The union of male and female gametes to form a zygote. A biological process that directly contributes to the process of producing new individuals by one or two organisms. The new individuals inherit some proportion of their genetic material from the parent or parents. The process whereby the egg becomes metabolically active, initiates protein and DNA synthesis and undergoes structural changes to its cortex and/or cytoplasm. Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level. A process, occurring at the cellular level, that is involved in the reproductive function of a multicellular or single-celled organism. The negative regulation of fertilization process that takes place as part of egg activation, ensuring that only a single sperm fertilizes the egg. Any process that increases the rate, frequency or extent of transcription as a part of the process of egg activation. Any process that starts the inactive process of meiosis in an egg after the egg has been fertilized or physiologically activated. Eggs generally arrest in meiosis and complete the process after activation. The process that increases the concentration of calcium ions in the cytosol after fertilization or the physiological activation of an egg. A change in the morphology or behavior of a cell resulting from exposure to an activating factor such as a cellular or soluble ligand.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: egg activation
Acc: GO:0007343
Aspect: Biological Process
Desc: The process whereby the egg becomes metabolically active, initiates protein and DNA synthesis and undergoes structural changes to its cortex and/or cytoplasm.
Proteins in PDR annotated with:
   This term: 12 [Search]
   Term or descendants: 13 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0007343 - egg activation (interactive image map)
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