Complex sentence: Along with the Telepods, Bartok also inherited Seth's orphaned son, whom he named Martin Brundle (Veronica Quaife died in childbirth), and who proved to possess human/fly hybrid genes, since he'd been conceived shortly after Seth Brundle's fateful teleportation.
Split into simpler sentences: Along with the Telepods, Bartok also inherited Seth's orphaned son, whom he named Martin Brundle (Veronica Quaife died in childbirth). Young Martin proved to possess human/fly hybrid genes like his late father, since he'd been conceived shortly "after" Seth Brundle's fateful teleportation.