The main body of the exhibition is a set of large-scale DNA double helix models, and the base installation points of the device detection device are set on the two double helixes at the lower end of the model. Here, participants assemble bases using magnetic tiles that represent them, creating a complete DNA strand.
The magnetic pieces of the four bases are placed in the storage area below the double helix. They represent the four bases A, T, C, and G respectively, and are marked in four colors: red, blue, yellow, and green. There are 25 kinds of bases, all of which have built-in RFID to prevent them from being taken away by the audience. The interface shapes of the four magnetic pieces are different, and they are designed strictly according to the principle of base pairing (that is, A pairs with T, and C pairs with G). A pair of bases can only be assembled according to the correct pairing principle. After the bases are assembled, they can be smoothly installed on the double helix to construct different DNA fragments. When all the bases on the double helix are installed correctly, the LED will light up on the double helix to show congratulations. After the event is over, press the "Reset" button, and the magnetic pieces representing the bases will disappear and automatically fall to the storage area of the booth, waiting for the next participation.
