How can just four nitrogenous bases--adenine, cytosine, guanine, and uracil--possibly code for all 20 amino acids? Thus, early researchers quickly determined that the smallest combination of As ...

Urey figured that the trace oxygen, nitrogen, and carbon would be bound ... most notably some of the "building blocks of life," amino acids. Amino acids are necessary to form proteins which ...

Hidden within the genetic code lies the "triplet code," a series of three nucleotides that determine a single amino acid. How did scientists ... two or three different bases.

Scientists discovered numerous organic compounds in samples from the asteroid Bennu, including key amino acids ... and ...

This discovery, along with the identification of other nitrogenous bases, laid the foundation for our understanding ... such as coding for proteins (mRNA), transferring amino acids (tRNA), and ...

Elizabeth D. Hetherington, Robert J. Olson, Jeffrey C. Drazen, Cleridy E. Lennert-Cody, Lisa T. Ballance, Ronald S. Kaufmann, Brian N. Popp https://www.jstor.org ...