Fleming’s discovery of mold led to which medical breakthrough? 👤 By The Quiz Wire ✅ Fact Checked 📊 Difficulty Easy 📅 Last Updated 01 Dec 2025 A. Insulin B. Morphine C. Penicillin D. Quinine Check Answer 💡 Explanation: Alexander Fleming discovered Penicillin, the first antibiotic. 📚 Topics: Inventions and Discoveries Scientific Discoveries 🎯 Exams: CSS GEN NTS PMS