( ( ( The ( normal number ) ) ( of ( chromosomes ( in ( human cells ) ) ) ) ) ( ( ( is 46 ) ( -LRB- ( ( in ( 23 pairs ) ) -RRB- ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ normal) (NN number)) (PP (IN of) (NP (NP (NNS chromosomes)) (PP (IN in) (NP (JJ human) (NNS cells)))))) (VP (VBZ is) (NP (CD 46)) (PRN (-LRB- -LRB-) (PP (IN in) (NP (CD 23) (NNS pairs))) (-RRB- -RRB-))) (. .)))
The normal number of chromosomes in human cells is 46 (in 23 pairs).
(ROOT (S (NP (NP (JJ Other)) (PP (IN than) (NP (NP (NNS gametes)) (, ,) (NP (JJ normal) (JJ human) (NNS cells))))) (VP (VBP have) (NP (NP (DT a) (NN total)) (PP (IN of) (NP (NP (CD 46) (NNS chromosomes)) (PP (IN per) (NP (NN cell))))))) (. .)))
Other than gametes, normal human cells have a total of 46 chromosomes per cell.