The Zona pellucida of a mammalian egg serves | vedclass

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(C) The $Zona$ $pellucida$ is a glycoprotein layer surrounding the plasma membrane of a mammalian oocyte. It plays a crucial role in fertilization by

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Prevents polyspermy

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(C) The $Zona$ $pellucida$ is a glycoprotein layer surrounding the plasma membrane of a mammalian oocyte. It plays a crucial role in fertilization by acting as a species-specific barrier for sperm binding. Once a single sperm penetrates the $Zona$ $pellucida$ and fuses with the egg membrane,cortical granules release enzymes that modify the $Zona$ $pellucida$ (the zona reaction),which prevents other sperm from binding or penetrating,thereby preventing polyspermy. It also protects the developing embryo during its transport through the oviduct and prevents premature implantation.

The $Zona$ $pellucida$ of a mammalian egg serves which of the following purposes?

Similar Questions

$A$: Every cell of the body contains the same genetic material as the zygote. $R$: The zygote is formed by the fusion of male and female gametes.

Which of the following depicts the site of implantation of the blastocyst under normal conditions?

$Statement I$: Penetration of sperm into ovum is a chemical process. $Statement II$: Acrosome of sperm secretes hyaluronidase which dissolves the corona radiata of the ovum.

Identical twins are produced when

In human beings,normally in which one of the following parts does the sperm fertilize the ovum?

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