( ( ( ( ( Chromosomes ( come ( in pairs ) ) ) , ) and ) ( ( a ( normal ( human cell ) ) ) ( contains ( ( ( ( ( 46 chromosomes ) , ) ( ( 22 pairs ) ( of autosomes ) ) ) and ) ( two ( sex chromosomes ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Chromosomes)) (VP (VBP come) (PP (IN in) (NP (NNS pairs))))) (, ,) (CC and) (S (NP (DT a) (JJ normal) (JJ human) (NN cell)) (VP (VBZ contains) (NP (NP (CD 46) (NNS chromosomes)) (, ,) (NP (NP (CD 22) (NNS pairs)) (PP (IN of) (NP (NNS autosomes)))) (CC and) (NP (CD two) (NN sex) (NNS chromosomes))))) (. .)))
Chromosomes come in pairs, and a normal human cell contains 46 chromosomes, 22 pairs of autosomes and two sex chromosomes.
(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.