Double helix

Describes the coiling of the antiparallel strands of the DNA molecule, resembling a spiral staircase in which the paired bases form the steps and the sugar-phosphate backbones form the rails.

Describes the coiling of the two strands of the double-stranded DNA molecule, resembling a spiral staircase in which the base pairs form the steps and the sugar-phosphate backbones form the rails on each side. One strand runs 3'?5', while the complementary one runs 5'?3'

The twisted-ladder shape that two linear strands of DNA assume when complementary nucleotides on opposing strands bond together.

The structural arrangement of DNA, which looks something like an immensely long ladder twisted into a helix, or coil. The sides of the "ladder" are formed by a backbone of sugar and phosphate molecules, and the "rungs" consist of nucleotide bases joined weakly in the middle by hydrogen bonds. See also nucleotide

The twisted-ladder shape that two linear strands of DNA assume when complementary nucleotides on opposing strands bond together.