Identify the statement that is text{NOT} corr | vedclass

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(C) An antibody molecule is represented as $H_2L_2$,meaning it consists of two heavy $(H)$ chains and two light $(L)$ chains.These chains are held tog

Vedclass · Accepted Answer

Antigen binding site is located at $C-$terminal region of antibody molecules.

Vedclass · Answer

(C) An antibody molecule is represented as $H_2L_2$,meaning it consists of two heavy $(H)$ chains and two light $(L)$ chains.These chains are held together by disulfide bonds ($S-S$ bonds).The antibody molecule has a $Y$-shaped structure.The variable region,which contains the antigen-binding site,is located at the $N$-terminal region of the antibody.The constant region is located at the $C$-terminal region of the antibody.Therefore,the statement that the antigen-binding site is located at the $C$-terminal region is incorrect.

Column-$I$	Column-$II$
$P$. Physical barriers	$I$. Acid in stomach,saliva in mouth,tears from eyes
$Q$. Physiological barriers	$II$. Skin,mucus coating of epithelium lining the respiratory,gastrointestinal and urogenital tracts
$R$. Cellular barriers	$III$. Interferons
$S$. Cytokine barriers	$IV$. Polymorphonuclear leukocytes ($PMNL$-neutrophils),monocytes,$NK$ cells,macrophages

Identify the statement that is $\text{NOT}$ correct.

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