Which scientist are cretided with the discovery that DNA is the chemical capable of transforming live R cells in mice?

Answer 1

The discovery that DNA is the chemical responsible for transforming live R cells in mice is credited to Frederick Griffith. In his 1928 experiments with Streptococcus pneumoniae, Griffith demonstrated that non-virulent R strain bacteria could be transformed into virulent S strain bacteria when exposed to heat-killed S strain. This transformative principle was later identified as DNA by Avery, MacLeod, and McCarty in 1944.