In which of the following case, mice will remain alive in Griffith's transforming experiments?

Question

In which of the following case, mice will remain alive in Griffith's transforming experiments?, Heat killed S - strain injected into mice., DNA from heat killed S - strain + R - strain injected into mice., S - strain injected into mice., More than one option is correct

MARKS App · Accepted Answer

Transforming Principle (by Frederick Griffith, 1928) - Frederick Griffith has done experiments on bacteria Streptococcus pneumonia. This bacteria causes pneumonia. - Griffith has observed the change in the physical form of the bacteria during the experiments. - Streptococcus pneumonia produces 2 types of colonies : 1 . Smooth and shiny colonies (S - strain or virulent strain) - Bacteria possess mucous (polysaccharide) coat. 2 . Rough colonies (R - strain) - Bacteria lacks mucous coat. Step 1 S –strain injected into the mice Mice die Step 2 R –strain injected into the mice Mice live Step 3 Heat killed S –strain injected into the mice Mice live Step 4 Heat killed S –strain + R –strain injected into the mice Mice die

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Step 1	S –strain injected into the mice	Mice die
Step 2	R –strain injected into the mice	Mice live
Step 3	Heat killed S –strain injected into the mice	Mice live
Step 4	Heat killed S –strain + R –strain injected into the mice	Mice die