thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the fertilized egg until it is implanted in the wall of the uterus
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Examples of zona pellucida
zona pellucida
Immature ova in mammals are surrounded by a protein called zona pellucida.
From the newscientist.com
Enzymes on the inner acrosomal membrane digests the zona pellucida.
From the en.wikipedia.org
Ovastacin, a cortical granule protease, cleaves ZP2 in the zona pellucida to prevent polyspermy.
From the sciencedaily.com
To be able to perform implantation, the blastocyst first needs to get rid of its zona pellucida.
From the en.wikipedia.org
The point was it was strong enough to break molecular bonds and hence penetrate the zona pellucida around the egg.
From the newscientist.com
The zona pellucida of the egg binds with the sperm.
From the en.wikipedia.org
It is here that lysis of the zona pellucida occurs.
From the en.wikipedia.org
After the acrosome reaction, it is believed that the sperm remains bound to the zona pellucida through exposed ZP2 receptors.
From the en.wikipedia.org
Meiosis stands by because of the follicular granulosa cells that send inhibitory signals through gap junctions and the zona pellucida.
From the en.wikipedia.org
