Question

How might it be argued that remodeling of the developing oocyte is directed toward post-fertilization developmental requirements (i.e. requirements associated with embryonic development), while remodeling of the cell that will become a sperm is directed toward fertilization itself rather than toward post-fertilization requirements?

Answer 1

Remodelling of a developing oocyte is directed towards post fertilization developmental requirements as it alters or determines the stages it goes through after fertilization. It directly affects the cell from blastocyst stage till attaching to the uterine wall and through the advancement of the fetus.
Whereas remodeling of the cell that will become sperm is directed towards fertilization rather than post-fertilization development because sperm cell is determined to deliver the haploid genome inside the oocyte and remodeling of the spermatogenic cells is associated with the mobility and survival mechanism of the sperm cell before it reaches the oocyte. Hence, it was directed towards fertilization.