( ( The ( affected chromosome ) ) ( ( is ( an autosome ) ) . ) )
(ROOT (S (NP (DT The) (JJ affected) (NN chromosome)) (VP (VBZ is) (NP (DT an) (NN autosome))) (. .)))
The affected chromosome is an autosome .
(ROOT (S (NP (NNS Autosomes)) (VP (VBZ is) (NP (NP (DT another) (NN term)) (PP (IN for) (NP (NN body) (NNS chromosomes))))) (. .)))