That background information did Watson and Crick have made available for developing a model of DNA ? What was their contribution ?

What background information did Watson and Crick have made available for developing a model of DNA ? What was their contribution ?

What background information did Watson and Crick have made available for developing a model of DNA ? What was their contribution ?

What background information did Watson and Crick have made available for developing a model of DNA. What was their contribution?

What background information did Watson and Crick have made available for developing a model of DNA? What was their contribution?

What background information did Watson and Crick had with them for developing a model of DNA? What was their own contribution?

What background information does Watson and Crick had, that helped them in developing a model of DNA? What was their contributions in the history of DNA?

Watson and Crick model of DNA is