In ABO blood grouping, which is False?
AIgM is most common antibody in ABO
BABO are carbohydrate Ag
CABO antibodies are natural and present since birth
DAb are present only if Ag is absent
Common site of haematopoiesis in the fetus is -
ALiver
BSpleen
CBone marrow
DGut
Which of the following is not a component of innate immunity?
AEpithelial barriers
BNK cells
CDendritic cells
DHelper T lymphocytes
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