HomeHHMI's BioInteractiveWatson constructing base pair models


Free Resources for Science Education

Video: Clips
Watson constructing base pair models

During the process of trying to elucidate the structure of DNA, Jim Watson made some cardboard models to try to understand how DNA nucleotides are paired. It helped him visualize how hydrogen atoms of paired nucleotides interact with each other to form a symmetrical structure that fits the double helix model.

Download this item

Additional Materials

Bulletin Article
Bulletin Article