( ( Genetic engineering ) ( ( ( ( ( is ( ( the alteration ) ( of ( ( genetic code ) ( by ( artificial means ) ) ) ) ) ) , ) and ) ( ( is therefore ) ( different ( from ( traditional ( selective breeding ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Genetic) (NN engineering)) (VP (VP (VBZ is) (NP (NP (DT the) (NN alteration)) (PP (IN of) (NP (NP (JJ genetic) (NN code)) (PP (IN by) (NP (JJ artificial) (NNS means))))))) (, ,) (CC and) (VP (VBZ is) (ADVP (RB therefore)) (ADJP (JJ different) (PP (IN from) (NP (JJ traditional) (JJ selective) (NN breeding)))))) (. .)))
Genetic engineering is the alteration of genetic code by artificial means, and is therefore different from traditional selective breeding.
(ROOT (S (NP (NNS Humans)) (VP (VBP create) (NP (NP (JJ different) (NNS breeds)) (PP (IN of) (NP (NP (NNS organisms)) (VP (VBG using) (NP (JJ artificial) (NN selection))))))) (. .)))