Question

Which scientists first proposed the semi-conservative model of DNA replication based on the structure of the double helix?

Options

• Meselson and Stahl

• Watson and Crick

• Franklin and Wilkins

• Chargaff and Hershey

Answer 1

Watson and Crick proposed the semi-conservative replication mechanism in 1953, suggesting that the specific base pairing in the double helix structure immediately implied a possible copying mechanism for genetic material.