Which of the following processes occurs in Gr | vedclass

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(B) In Frederick Griffith's experiment,he used two strains of Streptococcus pneumoniae: the $S$-strain (smooth,virulent) and the $R$-strain (rough,non

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$R$-strain is transformed into $S$-strain.

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(B) In Frederick Griffith's experiment,he used two strains of Streptococcus pneumoniae: the $S$-strain (smooth,virulent) and the $R$-strain (rough,non-virulent).When heat-killed $S$-strain bacteria were mixed with live $R$-strain bacteria and injected into mice,the mice died.Griffith observed that the live $R$-strain bacteria had been transformed into virulent $S$-strain bacteria.This process,where the genetic material from the heat-killed $S$-strain was taken up by the live $R$-strain,is known as bacterial transformation.

Which of the following processes occurs in Griffith's transformation experiment?

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Which of the following was responsible for the transformation of $R$ cells into $S$ cells?

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If the transforming principle is transferred to the $R$-strain,what characteristics will the $R$-strain acquire?
$(i)$ Formation of a smooth polysaccharide coat
$(ii)$ Becomes non-virulent
$(iii)$ Becomes virulent
$(iv)$ Does not form a smooth polysaccharide coat

What is the main conclusion of Griffith's transformation experiment?

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