Final answer:
The process that takes place when a virus transfers the genes that produce a neurotoxin from C. botulinum to C. sporogenes is transduction.
Step-by-step explanation:
If a virus transferred the genes that produce a neurotoxin from C. botulinum to C. sporogenes, the process that takes place is transduction. Transduction is the transfer of genetic material from one bacterium to another by a virus. In this case, the virus acts as a vector to transfer the genes that produce the neurotoxin from C. botulinum to C. sporogenes.