RNA and DNA Anabolism and Catabolism

A major part of DNA synthesis and breakdown is the usage of key amino acids as well as the necessity of energy maintenance (like ATP equivalents); the following PDF shows in detail the metabolic pathways for De Novo Purine and Pyrimidine Biosynthesis and the Catabolism of these nucleic acids, as well as the conversion from RNA to DNA using Ribonucleotide Reductase (RNR)!!! https://drive.google.com/drive/folders/1mnZEPuJKw_rYVbVybedKyPeRquOh4foz?usp=sharing