( ( The zygote ) ( ( contains ( ( a ( full set ) ) ( of ( ( ( 46 chromosomes ) , ) ( which ( is ( required ( to ( create ( a ( human life ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN zygote)) (VP (VBZ contains) (NP (NP (DT a) (JJ full) (NN set)) (PP (IN of) (NP (NP (CD 46) (NNS chromosomes)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN required) (S (VP (TO to) (VP (VB create) (NP (DT a) (JJ human) (NN life))))))))))))) (. .)))
The zygote contains a full set of 46 chromosomes, which is required to create a human life.
(ROOT (S (PP (IN In) (NP (NNS humans))) (, ,) (NP (DT a) (NN zygote)) (VP (VBZ has) (NP (CD 46) (NNS chromosomes))) (. .)))