True about Rh factor is: (A) There are no natural anti-Rh antibodies in serum, (B) Seen only in females, (C) Approximately 15 % of Indians are Rh positive, (D) D is the least powerful Rh antigen
Answer is A. There are no natural anti-Rh antibodies in serum Approximately 15% of the population lacks this antigen D- is the most immuno-genic Rh antigen