Final answer:
The correct order of contributions to the discovery of DNA includes various scientists and their significant findings.
Step-by-step explanation:
The correct order of contributions made to the discovery of DNA is as follows:
- James Watson and Francis Crick discovered the structure of DNA in 1953.
- George Gamow organized the "RNA Tie Club" to discuss the transmission of information by DNA.
- Crick, Sydney Brenner, Leslie Barnett, and Richard Watts-Tobin demonstrated the three bases of DNA code for one amino acid.
- Marshall Nirenberg and Heinrich Matthaei began the decoding of the genetic code.
- Har Gobind Khorana completed the decoding of the genetic code.
- Brenner, Barnett, Eugene Katz, and Crick proved that UGA was a third stop codon.