Which strain of bacteria formed rough colonie | vedclass

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(B) In Frederick Griffith's transformation experiment,he used two strains of Streptococcus pneumoniae: $1$. The $S$ strain (Smooth),which has a polysa

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$R$ strain

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(B) In Frederick Griffith's transformation experiment,he used two strains of Streptococcus pneumoniae: $1$. The $S$ strain (Smooth),which has a polysaccharide coat and is virulent,forming smooth colonies. $2$. The $R$ strain (Rough),which lacks the polysaccharide coat and is non-virulent,forming rough colonies. Therefore,the $R$ strain is responsible for forming rough colonies.

Which strain of bacteria formed rough colonies?

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