Final answer:
Yes, it is possible to find how the cross section of DNA looks without computer simulations. X-ray crystallography is a technique that has been used to study DNA structure and determine its cross-sectional shape and structure.
Step-by-step explanation:
Yes, it is possible to find how the cross section of DNA looks without computer simulations. One method that has been used to study DNA structure is X-ray crystallography. This technique involves scattering X-rays off a crystal of DNA and analyzing the diffraction pattern that is produced. By interpreting the diffraction pattern, scientists can determine the cross-sectional shape and structure of DNA.