The Tactile DNA puzzle is a tool to teach visually impaired students the chemistry and structure of DNA. The puzzle contains the 4 different nucleotides (A,T,C,G) a phosphate piece and Deoxyribose ...

The backbone of the DNA double helix consists of alternating phosphate and deoxyribose sugar molecules. Interlinking bases hold the two sides together. As A is complementary to T and C is ...