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Recell the experiments done by frederick...

Recell the experiments done by frederick Griffith, Avery, MacLeod and McCarty, where DNA was speculated to be the genatic material. If RNA , instead of DNA was the genetic meterial, would the heat killed strain of pneumoccus have transformed the R-strain into virulent strani? Explain.

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RNA undergoes degradation (due to presence of 2.OH group in ribose) being not thermostable. Being RNA genetic material, heat killed S-strain will not cause any transformation of R-strain.
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Recall the experiment done by Frederick Griffith. If RNA, instead of DNA was the genetic material, would the heat killed strain of strep have transformed the R-strain into virulent strain? Explain your answer.

a) Write the conclusin drawn by Griffith at the end of his experiment with Streptococcus pneumoniae. b) How did O.Avery, C.MacLeod and M. McCarty prove that DNA was the genetic material? Explain.

Assertion : In Griffith's experiment, a mixture of heat-killed virulent bacteria R and live non - virulent bacteria S, lead to the death of mice. Reason : 'Transforming principle' got transferred from heat -killed R strain and made it virulent.

Oswald Avery, Colin MacLeod and Maclyn McCarty used enzymes to purify biochemicals such as proteins, DNA and RNA from the heat-killed S cells to see which ones could transform live R cells into S cells in Griffith's experiment. They observed that

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