In Griffith's experiment, the conversion of R-type to S-type of Diplococcus Pneumoniae when mixed with heat-killed S-type is called
A
Mutation
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B
Transduction
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C
Transfection
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D
Transformation
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Solution
The correct option is C Transformation Transformation is the genetic alteration taking place in a cell resulting from the uptake of genetic material from its surroundings through the cell membrane.
Griffith's experiment involved conversation of R-type to S-type of Diplococcus Pneumoniae after mixing with heat-killed S-type. This conversion takes place by uptake of DNA from heat-killed S-type, hence it is an example of transformation.