( ( In ( ( the nucleus ) ( of ( each ( human ( somatic cell ) ) ) ) ) ) ( there ( ( are ( ( ( ( ( an ( estimated ( 100,000 genes ) ) ) ( encoded ( in ( ( ( approximately 1 ) meter ) ( of ( double-stranded ( deoxyribonucleic acid ) ) ) ) ) ) ) , ) or ) ( ( DNA , ) ( that ( ( are further ) ( ( ( condensed and ) packed ) ( into ( 46 chromosomes ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT the) (NN nucleus)) (PP (IN of) (NP (DT each) (JJ human) (JJ somatic) (NN cell))))) (NP (EX there)) (VP (VBP are) (NP (NP (DT an) (VBN estimated) (CD 100,000) (NNS genes)) (VP (VBN encoded) (PP (IN in) (NP (NP (QP (RB approximately) (CD 1)) (NN meter)) (PP (IN of) (NP (JJ double-stranded) (JJ deoxyribonucleic) (NN acid)))))) (, ,) (CC or) (NP (NP (NNP DNA)) (, ,) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADVP (RBR further)) (VP (VBN condensed) (CC and) (VBN packed) (PP (IN into) (NP (CD 46) (NNS chromosomes)))))))))) (. .)))
In the nucleus of each human somatic cell there are an estimated 100,000 genes encoded in approximately 1 meter of double-stranded deoxyribonucleic acid, or DNA, that are further condensed and packed into 46 chromosomes.
(ROOT (S (SBAR (IN If) (S (NP (NP (DT the) (NN dna)) (PP (IN from) (NP (NP (DT all) (CD 46) (NNS chromosomes)) (PP (IN in) (NP (DT a) (JJ human) (NN cell) (NN nucleus)))))) (VP (VBD was) (VP (VBN laid) (PRT (RP out)) (NP (NN end)) (S (VP (TO to) (VP (VB end)))))))) (, ,) (NP (PRP it)) (VP (MD would) (VP (VB measure) (ADVP (NP (QP (RB approximately) (CD two)) (NNS meters)) (RB long)))) (. .)))
If the dna from all 46 chromosomes in a human cell nucleus was laid out end to end, it would measure approximately two meters long.