For senior biology, AP biology, and biochemistry students, this is the digital interactive adaptation of the original: Nucleic Acids: Building Macromolecules Activity.Step-by-step instructions, questions, and nucleotide images.Students compare & contrast DNA & RNA and construct a section of DNA.Concepts include: ribose & deoxyribose sugars, phosphate groups, nitrogenous bases, glycosyl bonds, phosphodiester bonds, hydrogen bonds, antiparallel, purines, pyrimidines, and dehydration sy