cortical granule sentence in Hindi
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- Experimentally found within mouse cortical granules, N-Acetylglucosaminidase is a glycosidase that hydrolyzes N-acetylglucosamine residues located on the zona pellucida.
- In mammals, the first calcium wave occurs within 1 4 minutes following fertilization, and cortical granule exocytosis occurs within 5 30 minutes following fertilization.
- Peptidylarginine deiminiase is a secretory protein within the cortical granule that contributes to regulation of the embryo's development prior to the event of implantation.
- To create this barrier cortical granules, specialized exocytose is the release of calcium ions from cortical smooth endoplasmic reticulum in response to sperm binding to the egg.
- For example, in the fertilized sea urchin egg, it has been shown that the cortical granule exocytosis immediately follows the calcium increase after approximately 6 seconds.
- It can be distinguished from its congeners by its thin body, an absence of cortical granules, and a low number of ciliary rows and adoral polykinetids.
- Cortical granules inside the secondary oocyte fuse with the plasma membrane of the cell, causing enzymes inside these granules to be expelled by exocytosis to the zona pellucida.
- Despite this association with the cortical reaction, however, evidence has yet to be found supporting that the tissue-type plasminogen activator is a cortical granule component.
- In the cortical reaction, cortical granules directly beneath the plasma membrane are released into the space between the plasma membrane and the vitelline membrane ( the perivitelline space ).
- Upon release from the cortical granule, p32 appears to either function briefly or undergo a modification shortly after fertilization because only small amounts of p32 are present on the embryo.
- Further emphasizing the relationship between the endoplasmic reticulum and cortical granules, during oocyte maturation, endoplasmic reticulum has been observed to either grow or migrate closer toward the region of cortical granules.
- Further emphasizing the relationship between the endoplasmic reticulum and cortical granules, during oocyte maturation, endoplasmic reticulum has been observed to either grow or migrate closer toward the region of cortical granules.
- While much has been learned about the identity and function of the contents of the cortical granules in the highly accessible sea urchin, little is known about the contents of cortical granules in mammals.
- While much has been learned about the identity and function of the contents of the cortical granules in the highly accessible sea urchin, little is known about the contents of cortical granules in mammals.
- More specifically, in mice, for example, the ability to undergo cortical granule exocytosis arises some time between metaphase I and metaphase II of meiosis, which is also 5 hours before ovulation occurs.
- It should be noted that, upon fertilization, Protein Kinase C has been shown to promote the sperm's acrosomal exocytosis, a process homologous to that of the oocyte's cortical granule exocytosis.
- For instance, the formation of the CGFDs may be the oocyte's mechanism for retaining more cortical granules for future use rather than losing them to the polar bodies as the polar bodies extrude from the cell.
- Because some cortical granules released are from a region near the meiotic spindles, researchers have also hypothesized that the released cortical granules may modify the oocyte's extracellular matrix so that sperm cannot bind in this region.
- Because some cortical granules released are from a region near the meiotic spindles, researchers have also hypothesized that the released cortical granules may modify the oocyte's extracellular matrix so that sperm cannot bind in this region.
- Researchers also hypothesize the oocyte releases some cortical granules pre-fertilzation in order to make minor modifications to the oocyte's extracellular matrix so that binding is limited to only sperm capable of binding despite these minor modifications.
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