( ( In ( a ( typical ( human cell ) ) ) ) ( ( ( only ( one tenth ) ) ( of ( the genes ) ) ) ( ( are expressed ) . ) ) )
(ROOT (S (PP (IN In) (NP (DT a) (JJ typical) (JJ human) (NN cell))) (NP (NP (RB only) (CD one) (NN tenth)) (PP (IN of) (NP (DT the) (NNS genes)))) (VP (VBP are) (VP (VBN expressed))) (. .)))
In a typical human cell only one tenth of the genes are expressed.
(ROOT (S (NP (DT A) (JJ single) (JJ human) (NN body) (NN cell)) (ADVP (RB typically)) (VP (VBZ contains) (NP (NP (NNS thousands)) (PP (IN of) (NP (NNS genes))))) (. .)))
A single human body cell typically contains thousands of genes.