What would happen if Watson and Crick had not discovered the structure of DNA?

Answer 1

Rosalind Franklin discovered the physical structure. And if not, we would know much less about RNA being single-helixed and DNA being double, like the whole transcription and translation process.

Answer 2

Without Watson and Crick's discovery of the structure of DNA, our understanding of genetics and molecular Biology would have been significantly delayed. Many technological advancements, such as genetic engineering and biotechnology, may not have been possible without this foundational knowledge. It is also likely that the field of genetics would have progressed at a much slower pace.