( ( ( NUCLEAR MEMBRANE ) ( -LRB- ( ( also ( called ( the ( nuclear envelope ) ) ) ) -RRB- ) ) ) ( ( The ( nuclear membrane ) ) ( ( is ( ( double membrane ) ( that ( surrounds ( ( the nucleus ) ( of ( the cell ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NNP NUCLEAR) (NNP MEMBRANE)) (PRN (-LRB- -LRB-) (VP (ADVP (RB also)) (VBN called) (NP (DT the) (JJ nuclear) (NN envelope))) (-RRB- -RRB-))) (NP (DT The) (JJ nuclear) (NN membrane)) (VP (VBZ is) (NP (NP (JJ double) (NNS membrane)) (SBAR (WHNP (WDT that)) (S (VP (VBZ surrounds) (NP (NP (DT the) (NN nucleus)) (PP (IN of) (NP (DT the) (NN cell))))))))) (. .)))
NUCLEAR MEMBRANE (also called the nuclear envelope) The nuclear membrane is double membrane that surrounds the nucleus of the cell.
(ROOT (S (NP (NNP Nuclear) (NNP enevelope)) (VP (VBZ is) (NP (NP (DT a) (JJ double) (NN membrane)) (PP (IN of) (NP (NP (DT the) (NN nucleus)) (SBAR (WHNP (WDT that)) (S (VP (VBZ encloses) (NP (DT the) (JJ genetic) (NN material))))))))) (. .)))