Question

Match List I with List II:

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

Choose the correct answer from the options given below:

विकल्प

• A - II, B - III, C - IV, D - I

• A - IV, B - I, C - II, D - III

• A - III, B - II, C - I, D - IV

• A - III, B - IV, C - I, D - II

Answer 1

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

Explanation:

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

1. Bacterial transformation, in which genetic material can be transferred across bacteria, was discovered by Frederick Griffith.
2. The lac operon, a paradigm for gene control, was described by Francois Jacob and Jacques Monod.
3. Har Gobind Khorana figured out how nucleotide triplets identify amino acids by decoding the genetic code.
4. Meselson and Stahl confirmed Watson and Crick's concept by demonstrating the semiconservative character of DNA replication.