Because of the genetic mutation, or the possibility of the offspring have a genetic disorder.
Penetration of the egg' zona pellucida by the sperm cell is a process driven by hydrolytic enzymes.
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The critical step in fertilization is binding between sperm receptors and glycoproteins on the zona pellucida. This is the trigger for the acrosome reaction which includes an influx of CA and a rise in pH and cAMP levels within the sperm head. As a result, the plasma membrane of the sperm fuses with the outer acrosomal membrane and the exocytosis of the acrosomal<span> vesicle occurs. Components of the acrosome, like hydrolytic enzymes, are released and they degrade the <span>zona pellucida allowing</span> the sperm to move </span>inside.</span>
A. lipids
There are different forms of lipids. The one described in the question is called triglyceride.
Shrublands are a unique biome named for the many aromatic, semi-woody shrubs that thrive there. For instance, xeric, or desert scrublands, are hot and dry, with little rainfall.
