Biochemistry True about DNA structure A Purines are adenine and guanine & pyrimidines are uracil and cytosine B Waston and Crick discovered structure in 1973 C Deoxyribose - phosphate backbone with bases stacked inside D Mainly consists of left handed helix 💡 Explanation True about DNA structure ✓ Correct Answer: C. Deoxyribose - phosphate backbone with bases stacked inside