The main functions of nucleic acids are to what?

Well, the main function of one of the nucleic acids, DNA serves to store the complete genetic information in the form of nucleotide sequences that can later on be transcribed onto mRNA for manufacturing of proteins at the ribosome. The Nucleic acid of RNA, has one of the functions, just described, mRNA serves as a messenger providing the message of the specific sequence of nucleotides for protein synthesis at the ribosomes from DNA to itself.