Single Choice

Choose the correct answer from the alternatives given : Match column I with column II and select the correct option from the given codes. Column I Column II A. Griffith (i) Lac operon B. Hershey and Chase (ii) Semi-conservative DNA replication C. Meselson and Stahl (iii) Transduction D. Jacob and Monad (iv) Transformation

AA - (iv), B - (iii), C - (ii),D - (i)
Correct Answer
BA - (iii), B-(iv), C - (ii),D - (i)
CA - (iv), B - (ii), C - (iii),D - (i)
DA - (ii), B - (i), C - (iii), D - (iv)

Solution

Griffith performed the transformation experiment on S.pneumoniae to prove that the genetic material was inheritable. Hershey and Chase performed the transduction experiment which is the infection of a bacteria by a virus called bacteriophage to prove that DNA and not proteins were the genetic material. Meselson and Stahl the experiment on E.coli to establish that replication was semi-conservative (half of parent and half synthesized). Jacob and Monad elucidated the Lac operon a transcription-ally regulated system.
So, the correct option is 'A - (iv), B - (iii), C - (ii),D - (i)'.

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