Imagine a ladder, then twist it along it's length. Each side rail forms a helix (screw thread) shape. The alternating sugar-phosphate sequence are the side rails of the ladder the Purine and Pyrimidine Bases (A,G & C,T) are the rungs.
The shape of a DNA molecule is called a double helix.
DNA is organized in a double-helix fashion.
helix
DNA is a double helix, or a twisted ladder.
Watson and Crick called the 3-dimensional shape of DNA a double helix.
double helix
The name of the shape of DNA is called double helix. There are two long strands of DNA connected in several points. These strands twist and look like a spiral or a spring.
Double Helix :D
The shape of a DNA molecule is called a double helix.
Double helix
DNA exists as a double helix.
The shape of a DNA Molecule is a Double Helix
DNA is organized in a double-helix fashion.
DNA (deoxyribonucleic acid) has a double helix structure, in which two strands of nucleotides are wound around each other. This helical structure is responsible for carrying genetic information in living organisms.
double helix.
double helix
helix