Human Blood Group 2CRBC2CWBC Biology Gk Question in Hindi

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It’s biology gk in hindi includes full details of human blood :red blood cells (RBC), white blood cells (WBC) & blood group (A,B,AB,O negative-positive, donor-recipient) & platelets, clotting of blood, antigen, antibody, DNA, heme (himatin), pigments general science gk questions and answers (quizzes) for all competitions exams related questions papers pdf etc.