GIGANT DNA Model

At nearly 90 cm in height, this DNA Molecule is ideally suited to the classroom environment. Magnetic connectors, representing hydrogen bonds, permit the two strands of the double helix to unzip completely, evoking the mechanism of DNA replication, and RNA synthesis (genetic transcription). Removable nucleotides let students experience first hand why a larger purine base must always pair with a smaller pyrimidine base, and that base pairs are complementary - adenine pairing with thymine and guanine pairing with cytosine. Non-separable atoms connected by permanent flexible bonds form the sugar-phosphate backbone of the molecule. Encompassing six base pairs the double helix is mounted on a wooden base and can be rotated.