Question

Match List I with List II

List I		List II
A	Frederick Griffith	I	Genetic code
B	Francois Jacob & Jacque	II	Semi-conservative mode of DNA replication
C	Har Gobind Khoran	III	Transformation
D	Meselson & Stahl	IV	Lac operon

Choose the correct answer from the options given below:

• A. A-III, B-II, C-I, D-IV
• B. A-III, B-IV, C-I, D-II
• C. A-II, B-III, C-IV, D-I
• D. A-IV, B-I, C-II, D-III

Answer 1

The Correct Option is B

To accurately associate items from List I with List II, the contributions of each scientist are detailed below:

• Frederick Griffith is recognized for the discovery of Transformation, a mechanism by which genetic material is transferred between cells, often resulting in genetic modification.
• Francois Jacob and Jacques Monod are credited with formulating the Lac operon model, which elucidates gene regulation in bacteria.
• Har Gobind Khorana played a crucial role in decoding the Genetic code, establishing the correspondence between nucleotide sequences and specific amino acids.
• Meselson and Stahl provided evidence for the Semi-conservative mode of DNA replication, where each resulting DNA molecule comprises one parental strand and one newly synthesized strand.

The correct pairings, derived from these explanations, are as follows:

List I		List II
A	Frederick Griffith	III	Transformation
B	Francois Jacob & Jacques Monod	IV	Lac operon
C	Har Gobind Khorana	I	Genetic code
D	Meselson & Stahl	II	Semi-conservative mode of DNA replication

Consequently, the correct sequence of matches is: A-III, B-IV, C-I, D-II.