Transformation was discovered by
NEET 2014, Medium
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(c) : Transformation was first studied by S.F. Griffith in $1928$ while studying Streptococcus pneumoniae. He found that R­Type non virulent bacteria pick up virulence from heat killed virulent S­type bacteria and transform into virulent forms. It was this experiment which indicated presence of a ‘transforming principle’ which was later found out to be $DNA$, by Avery et al.
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