( There ( ( is ( ( little doubt ) ( ( that behavior ) ( is ( ( ( ( influenced , ) ( in part ) ) , ) ( by genes ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (JJ little) (NN doubt)) (SBAR (WHNP (WDT that) (NN behavior)) (S (VP (VBZ is) (VP (VBN influenced) (, ,) (PP (IN in) (NP (NN part))) (, ,) (PP (IN by) (NP (NNS genes))))))))) (. .)))
There is little doubt that behavior is influenced, in part, by 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)))) (. .)))