( ( ( ( ( Monoclonal antibodies ) , ) ( which ( are ( produced ( by hybridomas ) ) ) ) ) , ) ( ( are ( preferable ( to ( polyclonal ( antibodies ( because ( of ( their ( greater ( antigenic specificity ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Monoclonal) (NNS antibodies)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (VP (VBN produced) (PP (IN by) (NP (NNS hybridomas))))))) (, ,)) (VP (VBP are) (ADJP (JJ preferable) (S (VP (TO to) (VP (VB polyclonal) (NP (NP (NNS antibodies)) (PP (RB because) (IN of) (NP (PRP$ their) (JJR greater) (JJ antigenic) (NN specificity))))))))) (. .)))
Monoclonal antibodies, which are produced by hybridomas, are preferable to polyclonal antibodies because of their greater antigenic specificity.
(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)))))) (. .)))