This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Tetanospasmin encoding genes are locaed on: 
Select and explain. 
A. Chromosome, B. Plasmid, C. Both, D. Transposon
B: Plasmid
Answer: B: Plasmid 
Explanation: Ans. is. b. Plasmid