( ( Some ( human traits ) ) ( ( ( ( ( ( are ( largely genetic ) ) and ) ( are ( ( ( influenced little ) ( by ( environmental factors ) ) ) ( -LRB- ( ( such ( as ( eye color ) ) ) -RRB- ) ) ) ) ) ( , ( ( while ( ( all ( complex behaviors ) ) ( are polygenic ) ) ) , ) ) ) ( influenced ( by ( many genes ) ) ) ) . ) )
(ROOT (S (NP (DT Some) (JJ human) (NNS traits)) (VP (VP (VBP are) (ADJP (RB largely) (JJ genetic))) (CC and) (VP (VBP are) (VP (VBN influenced) (NP (RB little)) (PP (IN by) (NP (JJ environmental) (NNS factors))) (PRN (-LRB- -LRB-) (PP (JJ such) (IN as) (NP (NN eye) (NN color))) (-RRB- -RRB-)))) (PRN (, ,) (SBAR (IN while) (S (NP (DT all) (JJ complex) (NNS behaviors)) (VP (VBP are) (ADJP (JJ polygenic))))) (, ,)) (VP (VBN influenced) (PP (IN by) (NP (JJ many) (NNS genes))))) (. .)))
Some human traits are largely genetic and are influenced little by environmental factors (such as eye color), while all complex behaviors are polygenic , influenced by many genes.
(ROOT (S (NP (NP (NNS Behaviors)) (SBAR (WHNP (WDT that)) (S (VP (VP (VBP are) (ADVP (RB closely)) (VP (VBN controlled) (PP (IN by) (NP (NNS genes))))) (CC and) (VP (VBP have) (NP (NP (RB little)) (PP (TO to) (NP (DT no) (JJ environmental) (NN influence))))))))) (VP (VBP are) (VP (VBN called) (NP (JJ innate) (NNS behaviors)))) (. .)))