The X rays diffraction studies by …… played key role to the discovery of DNA structure? A) Watson & Crick B) Franklin C) Chargaff D) None of these Related MCQs: The triplet code of CAT in DNA is represented as ……. in mRNA and ……. in tRNA? Reinnitiation of DNA duplication within the same cycle is prevented in? Thymine dimmers damage in DNA is produced by …….. radiations? An alpha helix is an example of ……. structure of protein?