railway RRB Technician Grade 3 Mock Test 2024 General Science Biology Scientific Developments

भारतात 'डीएनए फिंगरप्रिंटिंगचे जनक' म्हणून कोणाला ओळखले जाते?

1
डॉ राजाजी त्रिवेदी 
2
एमएस स्वामीनाथन
3
डॉ लालजी सिंग  
4
सीएनआर राव
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