Which blood group contains both a and b antib | vedclass

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(D) In the $ABO$ blood grouping system,the presence or absence of antigens on the surface of red blood cells determines the blood group.Blood group $O

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Blood group $O$

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(D) In the $ABO$ blood grouping system,the presence or absence of antigens on the surface of red blood cells determines the blood group.Blood group $O$ individuals possess neither $A$ nor $B$ antigens on their red blood cells.However,their plasma contains both anti-$A$ and anti-$B$ antibodies.Therefore,individuals with blood group $O$ are considered universal donors because their red blood cells lack antigens that could trigger an immune response in recipients.

Column-$I$ (Blood Group)	Column-$II$ (Antibodies)
$P$. $A$	$I$. Absent
$Q$. $B$	$II$. $a$ (anti-$B$)
$R$. $AB$	$III$. $b$ (anti-$A$)
$S$. $O$	$IV$. $a, b$ (anti-$A$ and anti-$B$)

$i$. Neutrophils	$b$. Phagocytosis
$ii$. Basophils	$c$. Secretion of histamines
$iii$. Acidophils (Eosinophils)	$d$. Antihistaminic
$iv$. Lymphocytes	$a$. Immunity

Which blood group contains both $a$ and $b$ antibodies?

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Match the following columns:
Column-$I$ (Blood Group) Column-$II$ (Antibodies)
$P$. $A$ $I$. Absent
$Q$. $B$ $II$. $a$ (anti-$B$)
$R$. $AB$ $III$. $b$ (anti-$A$)
$S$. $O$ $IV$. $a, b$ (anti-$A$ and anti-$B$)

Which of the following blood cells has a kidney-shaped nucleus?

Match the Column $I$ (Blood corpuscles) with Column $II$ (functions).
$i$. Neutrophils $b$. Phagocytosis
$ii$. Basophils $c$. Secretion of histamines
$iii$. Acidophils (Eosinophils) $d$. Antihistaminic
$iv$. Lymphocytes $a$. Immunity

Which one of the following white blood cells occurs in the greatest proportion in human blood?

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