A double helix is a twisted, ladder-like construction fashioned by two strands of DNA or RNA. The double helix is the fundamental construction of genetic materials in all residing organisms and is liable for the transmission of genetic data from one technology to the following.
The double helix was first found by James Watson and Francis Crick in 1953. Their discovery was based mostly on the work of Rosalind Franklin and Maurice Wilkins, who had used X-ray crystallography to supply pictures of the DNA molecule.