Assertion: sperm | /r/CapableOf | penetrate morula
Facets:
Source sentences:
text: mechanical protection of egg involved in the fertilization process sperm binding adhesion of sperm to egg acrosome reaction releases enzymes to locally breakdown cortical granules modify to block of polyspermy altered to prevent more than 1 sperm penetrating mechanical protection of zygote, blastomeres, morula and blastocyst role in development of the blastocyst