( ( DNA ( Pol II ) ) ( ( is ( ( ( ( ( an ( 89.9 ( kD protein ) ) ) , ) ( composed ( of ( 783 ( amino acids ) ) ) ) ) , ) ( that ( is ( encoded ( by ( the ( polB ( ( -LRB- ( dinA -RRB- ) ) gene ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP DNA) (NNP Pol) (NNP II)) (VP (VBZ is) (NP (NP (DT an) (JJ 89.9) (NN kD) (NN protein)) (, ,) (VP (VBN composed) (PP (IN of) (NP (CD 783) (JJ amino) (NNS acids)))) (, ,) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN encoded) (PP (IN by) (NP (DT the) (JJ polB) (PRN (-LRB- -LRB-) (NP (NNP dinA)) (-RRB- -RRB-)) (NN gene))))))))) (. .)))
DNA Pol II is an 89.9 kD protein, composed of 783 amino acids, that is encoded by the polB (dinA) gene.
(ROOT (S (NP (NNS Genes)) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (NN dna))))) (. .)))
Genes are composed of dna.