In biology terms the difference between zygotic and prezygotic
is that zygotic is of or pertaining to a zygote while prezygotic is preceding the zygotic period.
zygotic
English
Adjective
(-)
(biology) Of or pertaining to a zygote.
prezygotic
English
Adjective
(-)
(biology) Preceding the zygotic period.
See also
* postzygotic