Question

How Scientist found that the structure of DNA is double helix without seeing the DNA?

Answer 1

Rosalind Franklin had produced an x-ray photograph of DNA according to which James Watson and Francis Crick worked out the 3D double helix structure...

Answer 2

Deoxyribonucleic acid is a molecule that carries the genetic instructions used in the growth, .... Uracil is not usually found in DNA, occurring only as a breakdown product of ... In a DNA double helix, each type of nucleobase on one strand bonds with .... These unusual structures can be recognized by specific Z-DNA binding ...