How was the genetic code discovered, and what role does it play in genetics today?

Explanation:

The genetic code was discovered by Nirenberg and German scientist Johann Matthaei, who were conducting a series of experiments to explore protein synthesis using synthetic RNA. They added RNA strands that contained only one of the four bases (A, U, G, or C) to a "cell-free system" and then added radioactively tagged amino acids.

Today, the genetic code provides important evidence for the common origin of life on earth, as it is a truly universal code that is shared by every organism, no matter how diverse.

just here for the other one bc they put up with u

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.