Who among the following scientist had no contribution in the development of the double helix model for the structure of DNA ?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4)- Meselson and Stahl.
- Erwin Chargaff contributed by discovering the base-pairing rules (A=T, G≡C), which were crucial for the double helix model.
- James Watson and Francis Crick are credited with developing the double helix structure of DNA in 1953.
- Maurice Wilkins and Rosalind Franklin provided key X-ray crystallography data that helped Watson and Crick determine the structure.
- Meselson and Stahl, however, are known for their work on proving the semi-conservative replication of DNA, not for contributing to the double helix model.