Biology · Human Blood and Circulatory System
निम्नलिखित में से किसने Rh कारक (Rh factor) की खोज की थी?
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- 2रॉबर्ट कोच
- 3विलियम हार्वे
- 4कार्ल लैंडस्टीनर और अलेक्जेंडर वेनर✓
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कार्ल लैंडस्टीनर और अलेक्जेंडर वेनर
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