( ( In ( addition ( to ( ( the ( specific traits ) ) ( chosen ( as ( ( the aims ) ( of breeding ) ) ) ) ) ) ) ) ( , ( parents ( ( are ( selected ( which ( possess ( ( other ( ( generally desirable ) traits ) ) ( such ( as ( ( vigor and ) size ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NP (NN addition)) (PP (TO to) (NP (NP (DT the) (JJ specific) (NNS traits)) (VP (VBN chosen) (PP (IN as) (NP (NP (DT the) (NNS aims)) (PP (IN of) (NP (NN breeding)))))))))) (, ,) (NP (NNS parents)) (VP (VBP are) (VP (VBN selected) (SBAR (WHNP (WDT which)) (S (VP (VBP possess) (NP (NP (JJ other) (ADJP (RB generally) (JJ desirable)) (NNS traits)) (PP (JJ such) (IN as) (NP (NN vigor) (CC and) (NN size))))))))) (. .)))
In addition to the specific traits chosen as the aims of breeding, parents are selected which possess other generally desirable traits such as vigor and size.
(ROOT (S (NP (JJ Selective) (NN breeding)) (VP (VBZ involves) (S (VP (VBG choosing) (NP (JJ certain) (NNS organisms)) (S (VP (TO to) (VP (VB reproduce) (PP (IN with) (NP (CD one) (DT another))) (SBAR (IN in) (NN order) (S (VP (TO to) (VP (VB pass) (PP (IN on) (NP (JJ specific) (, ,) (JJ desirable) (NNS traits))) (PP (TO to) (NP (PRP$ their) (NN offspring))))))))))))) (. .)))
Selective breeding involves choosing certain organisms to reproduce with one another in order to pass on specific, desirable traits to their offspring.