रूसी वनस्पति वैज्ञानिक दिमित्री इवानोवस्की ने किस वर्ष विषाणु की खोज की थी?

Which 16th-century Swiss physician and alchemist is widely regarded as the 'Father of Toxicology'?

The scientific study and discovery of vitamins began in which century?

Consider the following scientific milestones and arrange them in the correct chronological order starting from the earliest to the latest: I. First test-tube baby born II. First cloned sheep (Dolly) III. Discovery of Penicillin (Antibiotic) IV. Discovery of the double helix structure of DNA Select the correct answer from the code given below: