Is a molecular group consisting of sugar molecule a phoosphate group and a nitrogenous base a nucleic acid?
No, a molecular group consisting of a sugar molecule, a phosphate group, and a nitrogenous base is not a nucleic acid. Nucleic acids are polymers made up of nucleotide monomers, which contain a sugar, a phosphate group, and a nitrogenous base. The arrangement of these nucleotide monomers forms DNA or RNA, the two types of nucleic acids.