Each base—A, C, T, —can be considered as four-letter alphabet that spells out biological messages in the chemical structure of the DNA. The model is also beautiful decoration for school, office and bedroom. Features -Color:Multi -Material:Wood, plastic -Size:26.00X11.00X11.00cm/10.22X4.32X4.32in - In a double- molecule, A=T, G=C. That is: A + G = T + C or A + C = T + G. - Self-assembling suite can exercise child's concentration and mental concentration, delivers more fun opportunity. - Interlocking pieces connect to form the double helix shape and show how molecules split at the center of the . - It is an intuitive teaching aid suitable for teaching basic DNA double helix and biology courses in middle schools. - Make learning come alive and build creativity with this hands-on and interactive science model. Package list: 1 x DNA Model