Double Helix Model

The Double Helix Model describes the structure of DNA, which is the material that carries genetic information in living organisms. DNA looks like a twisted ladder or a spiral staircase, with two long strands coiled around each other. These strands are made of sugar, phosphate, and nitrogen bases. The bases pair specifically (adenine with thymine, and cytosine with guanine), holding the strands together like rungs on a ladder. This structure allows DNA to store, replicate, and transmit genetic information efficiently, making it fundamental to biological inheritance and function.