( ( ( Monoclonal Antibody ) ( An antibody ) ) ( ( ( ( ( produced ( by ( cultured cells ) ) ) ( ( ( ( that ( ( have ( their origin ) ) ( in ( a ( single ( antibody-producing cell ) ) ) ) ) ) , ) and ) ( which ( ( is therefore ) ( of ( a ( single ( molecular type ) ) ) ) ) ) ) ) , ) ( in ( contrast ( to ( ( the ( polyclonal antibodies ) ) ( normally ( found ( in ( ( the serum ) ( of ( an ( immunized animal ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Monoclonal) (NNP Antibody)) (NP (DT An) (NN antibody))) (VP (VBD produced) (PP (IN by) (NP (JJ cultured) (NNS cells))) (SBAR (SBAR (WHNP (WDT that)) (S (VP (VBP have) (NP (PRP$ their) (NN origin)) (PP (IN in) (NP (DT a) (JJ single) (JJ antibody-producing) (NN cell)))))) (, ,) (CC and) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB therefore)) (PP (IN of) (NP (DT a) (JJ single) (JJ molecular) (NN type))))))) (, ,) (PP (IN in) (NP (NP (NN contrast)) (PP (TO to) (NP (NP (DT the) (JJ polyclonal) (NNS antibodies)) (VP (ADVP (RB normally)) (VBN found) (PP (IN in) (NP (NP (DT the) (NN serum)) (PP (IN of) (NP (DT an) (JJ immunized) (NN animal))))))))))) (. .)))
Monoclonal Antibody An antibody produced by cultured cells that have their origin in a single antibody-producing cell, and which is therefore of a single molecular type, in contrast to the polyclonal antibodies normally found in the serum of an immunized animal.
(ROOT (S (NP (DT An) (NN animal)) (VP (VBZ produces) (NP (JJ polyclonal) (NNS antibodies)) (PP (IN after) (NP (NP (NN exposure)) (PP (TO to) (NP (DT a) (JJ microbial) (NN antigen)))))) (. .)))