Which blood group is the universal donor?

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Question

(B) The universal donor is the blood group that can be given to individuals of any blood type without causing an immune reaction. $O^{-}$ blood type l

Vedclass · Accepted Answer

$O^{-}$

Vedclass · Answer

(B) The universal donor is the blood group that can be given to individuals of any blood type without causing an immune reaction. $O^{-}$ blood type lacks both $A$ and $B$ antigens on the surface of red blood cells and also lacks the $Rh$ factor. Because it does not have these antigens,it does not trigger an immune response in the recipient's body,making $O^{-}$ the universal donor.

Column-$I$ (Cells)	Column-$II$ (Average number per $mm^3$)
$P$. Erythrocytes	$I$. $1.5$ to $3.5$ Lakhs
$Q$. Leukocytes	$II$. $6,000$ to $8,000$
$R$. Thrombocytes	$III$. $5$ to $5.5$ Million

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$P$. Erythrocytes $I$. $1.5$ to $3.5$ Lakhs
$Q$. Leukocytes $II$. $6,000$ to $8,000$
$R$. Thrombocytes $III$. $5$ to $5.5$ Million

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