Biology · Medical Inventions
मानव रक्त समूहों (ABO प्रणाली) का आविष्कारक किसे माना जाता है?
- 1एडवर्ड जेनर
- 2अलेक्जेंडर फ्लेमिंग
- 3कार्ल लैंडस्टीनर✓
- 4विलियम हार्वे
सही उत्तर देखें
कार्ल लैंडस्टीनर
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