Cold Spring Harbor Laboratory
The DNA Molecule Is Shaped like a Twisted Ladder
One of the first models of DNA appeared to be a triple helix. Young scientists learn about the many scientists who worked to find the shape of DNA. They observe multiple models, tests, and experiments to understand the conclusions. An...
American Museum of Natural History
American Museum of Natural History: O Logy: Stuff to Do: Make a Dna Model
Learn about DNA by building a model of its double-strand structure.