The child, named Martin Brundle, is raised by Anton Bartok, who is the owner of the company which financed Brundle's teleportation experiments and fully aware of the accident which genetically merged Seth Brundle with a housefly (a condition that Martin has inherited).
The child is raised by Anton Bartok. The child is named Martin Brundle. Anton Bartok is the owner of the company. This company financed Brundle's teleportation experiments and fully aware of the accident Seth Brundle with a housefly (a condition that Martin has inherited). This accident genetically merged.