R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Biology Q. Blood groups were discovered by (A) Ronald Ross (B) Losch (C) Altmann (D) Landsteiner 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (D) Landsteiner You must be Logged in to update hint/solution 💬 Discussion 💬 Comment