HomeSSCWho among the following established that genetic code of all organisms is spelled out in three-letter words, each set of three nucleotides codes for a specific amino acid? Who among the following established that genetic code of all organisms is spelled out in three-letter words, each set of three nucleotides codes for a specific amino acid?By Admin / October 4, 2025 A. Hargobind Khorana B. Barbara McClintock C. Theodor O. Diener D. Joseph L. Goldstein ✅ The correct answer is option A.