Assertion: semen's protein | /r/AtLocation | the sperm membrane
Facets:
Source sentences:
text: Special proteins are added to the sperm membrane and others are removed, resulting in a highly specialized and outfitted cell that can swim to the egg, bind to the egg and penetrate the egg.
text: Unique proteins are added to the sperm membrane and others are gotten rid of, resulting in a highly specialized and equipped cell that can swim to the egg, bind to the egg and penetrate the egg.