Qué actividades humanas incrementan el volumen de gases efecto invernadero arrojado a la atmósfera?

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.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.