Find the number of ribose molecules and phosphoric acid residues in an mRNA molecule with 80 uracil bases, 280 guanyl bases, 280 cytidyl bases, and 80 adenyl bases.
In the mRNA molecule, total nucleotides:
80 + 280 + 80 + 280 = 720.
Each nucleotide contains one residue of a ribose molecule and one residue of a phosphoric acid molecule. This means that there are 720 residues in the mRNA – ribose and phosphoric acid.
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