( Genes ( ( are ( located ( on ( chromosomes ( in ( the cell ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Genes)) (VP (VBP are) (VP (VBN located) (PP (IN on) (NP (NP (NNS chromosomes)) (PP (IN in) (NP (DT the) (NN cell))))))) (. .)))
Genes are located on chromosomes in the cell.
(ROOT (S (NP (NP (DT A) (NN cell) (POS 's)) (NNS chromosomes)) (VP (VBP contain) (NP (NNS genes))) (. .)))
A cell’s chromosomes contain genes.