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
Cold sterilization is done by: September 2007 
Select and explain. 
A. Steam, B. Inionizing radiation, C. Infra red, D. UV
B: Inionizing radiation
Answer: B: Inionizing radiation 
Explanation: Ans. B: Inionizing radiation Cold sterilization is a process in which sterilization is carry out at low temperature with the help of chemicals, radiations, membranes and all other means excluding high temperature. Ionizing radiation such as X-rays, gamma rays and cosmic rays, cause no appreciable increase in temperature in this method, it is referred as cold sterilization