BIOMOLECULES AND ENZYMES

Detailed explanation-1: -At King’s College London, Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins. Franklin’s images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model. In 1962 Watson (b.

Detailed explanation-2: -Answer and Explanation: Watson and Crick are famous scientists who created a milestone by determining the structure of DNA. They used X-ray crystallography to identify that DNA is made up of two strands wrapped around each other to produce a double-helical structure.

Detailed explanation-3: -In Watson and Crick’s model, the two strands of the DNA double helix are held together by hydrogen bonds between nitrogenous bases on opposite strands. Each pair of bases lies flat, forming a “rung” on the ladder of the DNA molecule. Base pairs aren’t made up of just any combination of bases.