Which of the following was discovered by GN Ramachandran?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Triple helical structure of collagen.
G.N. Ramachandran, an eminent Indian biophysicist, is most famously known for his groundbreaking discovery of the triple helical structure of collagen in 1954, along with his colleague Gopinath Kartha. This fundamental revelation established that collagen, the most abundant protein in the human body, consists of three polypeptide chains wound around each other in a unique right-handed superhelix. This discovery was crucial for understanding the properties of connective tissues and laid a cornerstone for the field of structural biology. He also developed the widely used "Ramachandran plot," a tool for analyzing protein structures.