Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
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Capacitation<br />
• sperm arrive in the oviduct.<br />
• takes about 5–6 hours in humans<br />
• changes in glycoproteins, lipids, <strong>and</strong> ion channels<br />
• change in the resting potential of this membrane<br />
• increase in cytosolic pH<br />
• tyrosine phosphorylation<br />
• unmasking of cell-surface receptors<br />
• greatly increases the motility of the flagellum<br />
• capable of undergoing the acrosome reaction.
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