( ( ( ( ( ( ( ( ( -LRB- ( ( # 2 ) -RRB- ) ) Evolution ) : ) ( ( ( ( Changes ( in DNA ) ) , ) or ) mutations ) ) , ) ( cause ( ( new alleles ) ( to ( ( arise , ) ( leading ( to ( ( variation ( among ( organisms ( within ( a population ) ) ) ) ) ( ( -LRB- ( ( # 7 ) -RRB- ) ) Applications ) ) ) ) ) ) ) ) ) : ) ( ( Genetics research ) ( has ( applications ( in ( many ( different fields ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (PRN (-LRB- -LRB-) (NP (QP (# #) (CD 2))) (-RRB- -RRB-)) (NNS Evolution)) (: :) (NP (NP (NP (NNS Changes)) (PP (IN in) (NP (NNP DNA)))) (, ,) (CC or) (NP (NNS mutations))) (, ,)) (VP (VBP cause) (S (NP (JJ new) (NNS alleles)) (VP (TO to) (VP (VB arise) (, ,) (S (VP (VBG leading) (PP (TO to) (NP (ADJP (JJ variation) (PP (IN among) (NP (NP (NNS organisms)) (PP (IN within) (NP (DT a) (NN population)))))) (PRN (-LRB- -LRB-) (NP (QP (# #) (CD 7))) (-RRB- -RRB-)) (NNS Applications)))))))))) (: :) (S (NP (NNP Genetics) (NN research)) (VP (VBZ has) (NP (NP (NNS applications)) (PP (IN in) (NP (JJ many) (JJ different) (NNS fields)))))) (. .)))
(#2) Evolution: Changes in DNA, or mutations, cause new alleles to arise, leading to variation among organisms within a population (#7) Applications: Genetics research has applications in many different fields.
(ROOT (S (NP (NNS Mutations)) (VP (VP (VBP are) (NP (NP (NNS changes)) (PP (TO to) (NP (NP (DT an) (NN organism) (POS 's)) (NN dna))))) (CC and) (VP (VBP are) (NP (NP (DT an) (JJ important) (NN driver)) (PP (IN of) (NP (NP (NN diversity)) (PP (IN in) (NP (NNS populations)))))))) (. .)))