( ( ( Molecular and ) ( cytogenetic methods ) ) ( ( are ( ( used ( for ( detection ( of ( chemically ( or ( radiation-induced mutations ) ) ) ) ) ) ) ( in DNA ) ) ) . ) )
(ROOT (S (NP (NP (NNP Molecular)) (CC and) (NP (JJ cytogenetic) (NNS methods))) (VP (VBP are) (VP (VBN used) (PP (IN for) (NP (NP (NN detection)) (PP (IN of) (NP (JJ chemically) (CC or) (JJ radiation-induced) (NNS mutations))))) (PP (IN in) (NP (NNP DNA))))) (. .)))
Molecular and cytogenetic methods are used for detection of chemically or radiation-induced mutations in DNA.
(ROOT (S (NP (NNP Induced) (CC or) (NNP spontaneous)) (VP (VBP are) (NP (NP (DT the) (CD two) (NNS methods)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NNS mutations)) (VP (VBP arise) (PP (IN in) (NP (NN dna)))))))) (. .)))