| 31. | This binding triggers the acrosome to burst, releasing enzymes that help the sperm get through the zona pellucida.
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| 32. | The protein, ovoperoxidase, most likely acts as a catalyst that cross-links tyrosine residues found within the zona pellucida.
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| 33. | The researchers also used the device to remove the " zona pellucida " shell that encases early embryos.
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| 34. | PZP stands for porcine zona pellucida.
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| 35. | After the acrosome reaction, the sperm is believed to remain bound to the zona pellucida through exposed ZP2 receptors.
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| 36. | Once this occurs, the sperm is capable of binding with the zona pellucida, and the acrosome reaction can occur.
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| 37. | A glycoprotein polymer capsule called the zona pellucida forms around the oocyte, separating it from the surrounding granulosa cells.
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| 38. | The zona pellucida, which remains with the oocyte after ovulation, contains enzymes that catalyze with sperm to allow penetration.
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| 39. | In order for an egg to be fertilised, sperm must first bind to, and then penetrate the zona pellucida.
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| 40. | Oocytes reach normal size and form a zona pellucida although organelles become clustered and cortical granules do not form.
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