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