How is the meiotic division of the secondary oocyte induced?

Step-by-step solution

During fertilisation, a sperm comes in contact with the zona pellucida layer of the ovum (Figure 2.10) and induces changes in the membrane that block the entry of additional sperms. Thus, it ensures that only one sperm can fertilise an ovum. The secretions of the acrosome help the sperm enter into the cytoplasm of the ovum through the zona pellucida . This induces the completion of the meiotic division of the secondary oocyte. The second meiotic division is also unequal and results in the formation of a second pola