( ( In essence ) ( , ( ( ( a strand ) ( of DNA ) ) ( ( encodes ( ( the information ) ( needed ( to ( ( put together ) ( protein molecules ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NN essence))) (, ,) (NP (NP (DT a) (NN strand)) (PP (IN of) (NP (NNP DNA)))) (VP (VBZ encodes) (NP (NP (DT the) (NN information)) (VP (VBN needed) (S (VP (TO to) (VP (VB put) (PRT (RP together)) (NP (NN protein) (NNS molecules)))))))) (. .)))
In essence, a strand of DNA encodes the information needed to put together protein molecules.
(ROOT (S (NP (NNP Dna)) (VP (VBZ encodes) (NP (NP (NNS instructions)) (PP (IN for) (NP (NNS proteins) (NNS molecules))))) (. .)))