This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Microbiology
Which propey was demonstrated by Griffith with experiments on mice using pneumococcus 
Select and explain. 
A. Lysogenic conversion, B. Transduction, C. Transformation, D. Conjugation
C: Transformation
Answer: C: Transformation 
Explanation: Transformation is the transfer of genetic information through the agency of free DNA. On repeated subculture, Streptococcus pneumoniae undergo smooth to rough variation. In the R form, the colonies are rough and the cocci are non-capsulated, autoagglutinable and avirulent. R form arises as spontaneous mutants and outgrows the parental S form in aificial culture. In tissues, such R forms are eliminated by phagocytosis Reference: Textbook of Microbiology; Anathanarayan and panicker's; 10th edition; Page no: 59, 226