Nucleic Acid Builder

 Master the molecular building blocks of life with this hands-on AP Biology interactive. The Nucleic Acid Builder guides you through 7 progressive missions that transform abstract concepts into visual, interactive experiences.   What You'll Learn:   Build DNA & RNA nucleotides - Drag and drop phosphate groups, sugars (deoxyribose vs. ribose), and nitrogenous bases to construct complete nucleotides   Master base pairing rules - Practice A-T and G-C complementary pairing through guided challenges   Compare DNA vs. RNA - Discover why DNA uses thymine while RNA uses uracil, and how the 2'-OH difference affects molecular stability   Explore genome organization - Build prokaryotic genomes with circular chromosomes and plasmids, then organize eukaryotic DNA with histones and linear chromosomes   Apply the Central Dogma - Complete the capstone mission by transcribing DNA to RNA