A Researcher Establishes Mouse Spermatozoa Lacking One of the Following

Multiple Choice

A researcher establishes mouse spermatozoa lacking one of the following two sperm-specific proteins: Izumo and CD9.Which developmental events will be perturbed in the absence of either of these proteins?

A) Spermatogenesis
B) Capacitation
C) Binding of spermatozoa to the zona pellucida
D) Fusion of the egg and spermatozoa membranes
E) Spermiogenesis