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Question:

Transformation was discovered by Meselson and Stahl, Watson and Crick, Griffith, Hershey and Chase?

Watson and Crick

Meselson and Stahl

Hershey and Chase

Griffith

Solution:

Transformation is the genetic alteration of a cell resulting from the direct uptake and incorporation of exogenous genetic material from its surroundings and taken up through the cell membrane. Transformation was first demonstrated in 1928 by British bacteriologist Frederick Griffith. Thus, the correct answer is option (D), 'Griffith'.