( ( answer Sex ) ( ( linked ( ( crosses Traits ) ( are ( associated ( with ( ( the ( sex chromosomes ) ) ( -LRB- ( ( ( x and ) y ) -RRB- ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN answer) (NN Sex)) (VP (VBD linked) (SBAR (S (NP (NNP crosses) (NNP Traits)) (VP (VBP are) (VP (VBN associated) (PP (IN with) (NP (NP (DT the) (NN sex) (NNS chromosomes)) (PRN (-LRB- -LRB-) (NP (NP (SYM x)) (CC and) (NP (NN y))) (-RRB- -RRB-))))))))) (. .)))
answer Sex linked crosses Traits are associated with the sex chromosomes (x and y).
(ROOT (S (NP (JJ Sex-linked) (NNS traits)) (VP (VBP are) (VP (VBN located) (PP (IN on) (NP (NP (NNS genes)) (PP (IN on) (NP (NN sex) (NNS chromosomes))))))) (. .)))