( ( ( RNA , ) ( ( ( ( gene expression ) , ) and ) ( protein synthesis ) ) ) . )
(ROOT (NP (NP (NNP RNA)) (, ,) (NP (NP (NN gene) (NN expression)) (, ,) (CC and) (NP (NN protein) (NN synthesis))) (. .)))
RNA, gene expression, and protein synthesis.
(ROOT (S (NP (NNP Gene) (NN expression) (CC and) (NN protein) (NNS synthesis)) (VP (VBP are) (ADVP (RB usually)) (VP (VBN considered) (NP (DT the) (JJ same) (JJ molecular) (NN process)))) (. .)))