Question
Biology Question on human reproduction
During Human fertilization, this induces changes and acts as a barrier, and ensure that only one sperm can enter and fertilize the ovum.
Perivtelline space
Zona pellucida
Corona radiata
Cytoplasm of the ovum
Zona pellucida
Solution
The correct answer is option (B): Zona pellucida
A crucial component of effective fertilization is the zona pellucida. During the period of oogenesis, it connects follicular cells and oocytes by existing between them. Embryos and oocytes are shielded during development. It starts the acrosome reaction, which allows sperm cells to attach and penetrate. It aids in avoiding polygamy. The acrosome reaction is triggered by the binding of zona pellucida glycoprotein It aids in species-specific fertilization and avoids interspecific breeding. It controls how free-swimming sperms and ovulated eggs or secondary oocytes interact. Immunocontraception targets sperm-binding proteins. Infertility affects the mutant females devoid of the zona pellucida layer covering fertilization of the egg.