Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
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• Cortical granules<br />
– specialized secretory vesicles in cortex of the egg cytoplasm.<br />
– exocytosis the contents of the granules alter the egg coat<br />
– so as to help prevent more than one sperm from fusing with the egg.<br />
• Some egg cytoplasmic components have a strikingly asymmetrical<br />
distribution to help establish the polarity of the embryo
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