試題詳解

62. If an egg cell contained EDTA~ a chemical that binds calcium and magnesium, what effects would this have on reproduction?
(A) The acrosomal reaction would be blocked.
(B) The fusion of sperm and egg nuclei would be blocked.
(C) The fast block to polyspermy would not occur.
(D) The fertilization envelope would not be formed.
(E) The zygote would not contain maternal and paternal chromosomes.