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  • Diagram showing the steps in fertilisation.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 13 February 2009 Size: 43 KB Referencing Hub media

    Diagram showing the steps in fertilisation. The sperm attaches (1), binds (2) and penetrates (3) the zona pellucida. When the sperm fuses with the egg's membrane genetic material is released inside the egg. Fertilisation (4) occurs when the sperm's genetic material eventually combines with the egg's genetic material.

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