( Humans ( ( have ( ( 46 chromosomes ) ( that ( are ( organized ( into ( 23 pairs ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Humans)) (VP (VBP have) (NP (NP (CD 46) (NNS chromosomes)) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (VP (VBN organized) (PP (IN into) (NP (CD 23) (NNS pairs))))))))) (. .)))
Humans have 46 chromosomes that are organized into 23 pairs.
(ROOT (S (NP (NNS Humans)) (VP (VBP have) (NP (NP (CD 23) (JJ pairs) (NNS pairs)) (PP (IN of) (NP (NNS chromosomes))))) (. .)))