Fill in the Blank QuestionFill in the blank question.Franklin used x-ray to suggest that DNA has a helical structure.

The correct statement is: Franklin used X-ray diffraction to suggest that DNA has a helical structure.

Explanation

Rosalind Franklin was a pioneering scientist who utilized X-ray diffraction techniques to study the structure of DNA. By directing X-rays at a crystallized sample of DNA and analyzing the resulting diffraction patterns, she was able to draw significant conclusions about its shape. The famous "X" pattern that emerged from her photographs indicated that DNA had a helical structure, suggesting that the molecule twisted in a spiral form. This evidence was crucial for further understanding the double helix model of DNA, which was later proposed by Watson and Crick, incorporating Franklin's findings into their research. Her work laid a vital foundation for modern genetics and molecular biology, illustrating the importance of advanced imaging techniques in scientific discovery.