It is called as Bombay blood group as this blood group is first identified in Bombay by Dr.Y.M.Bhende in 1952 . It is also called as HH group . The peculiarity is that this type of blood group do not express the H antigen. As a result they cannot form A antigens or B antigens on their red blood cells. Thus they can donate blood to anybody but can receive blood only from Bombay blood group people. Any person with this blood group who needs an urgent blood transfusion will probably be unable to get it, as no blood bank would have any in stock.
Some movies are also made by taking this concept of Bombay blood group . It is a very rare blood type . Sometimes people get confused between o blood group and Bombay blood group as both can donate their blood to all other blood types and it also lack both antigens a and b . The difference is that in case of O blood group Fucose is present and H antigen is present .
It can be Rh positive or Rh negetive .Try to understand the concept when we say someone has A blood group it means it contain Ag of blood group A and Ab of type B in the blood . People with AB blood group has both Ag a and Ag b but no antibodies. Blood group O has both A and B Antibodies but no antigens .It is not well known that all have antigen H .So, it is found in people with O +ve blood group where antigen H is missing ( Bombay blood group).
Image source credit -https://rhesusnegativebloodgroup.files.wordpress.com/2011/10/toi_2010_8_21_5.jpg
MCQS -
1.About Bombay blood group, true is
A. Lack of A, B and H antigen's on RBC
B. Lack of only A and B antigens
C. Only A
D. Both A and B
Ans. A
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