My daughter and I built this LEGO DNA sculpture for her school science project.  It took us a lot of trial and error to come up with the design, but I think it turned out great.  This is the first model I’ve ever glued, because without it the sculpture was very fragile and would have never survived the trip to school.  We used Oatey All-Purpose Cement, which was smelly but did a great job of holding the model together.  It actually melts the plastic bricks together, so the sculpture is very sturdy.

More Pictures Below…

The picture above was taken more from the top, which gives a better view of the spiral effect.

Above is a close up of the center connections.  Notice the different jigsaw designs which only allow each colored section to bond with the proper corresponding colored section.  The other LEGO DNA models I’ve seen usually don’t have this feature, which my daughter said was a critical part of the design for the assignment.

Above is another close up showing a series of several steps in the ladder.

Overall, LEGO turned out to be a great tool for modeling DNA.  We had fun coming up with this design, building and gluing the model together.