( ( ( ( Sex linkage ) - ) ( ( ( an ( inherited trait ) ) , ) ( ( ( such ( as ( ( ( color discrimination ) , ) ( determined ( by ( ( a gene ) ( located ( on ( a ( sex chromosome ) ) ) ) ) ) ) ) ) ) and ) ( that ( therefore ( shows ( ( a ( different pattern ) ) ( of ( inheritance ( in ( ( males and ) females ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NN Sex) (NN linkage)) (: -) (NP (NP (DT an) (JJ inherited) (NN trait)) (, ,) (UCP (PP (JJ such) (IN as) (NP (NP (NN color) (NN discrimination)) (, ,) (VP (VBN determined) (PP (IN by) (NP (NP (DT a) (NN gene)) (VP (VBN located) (PP (IN on) (NP (DT a) (NN sex) (NN chromosome))))))))) (CC and) (SBAR (WHNP (WDT that)) (S (ADVP (RB therefore)) (VP (VBZ shows) (NP (NP (DT a) (JJ different) (NN pattern)) (PP (IN of) (NP (NP (NN inheritance)) (PP (IN in) (NP (NNS males) (CC and) (NNS females))))))))))) (. .)))
Sex linkage- an inherited trait, such as color discrimination, determined by a gene located on a sex chromosome and that therefore shows a different pattern of inheritance in males and females.
(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))))))) (. .)))