( HD ( ( ( ( affects ( the brain ) ) , ) ( though ( ( ( all cells ) ( with ( a nucleus ) ) ) ( will ( have ( the ( abnormal gene ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP HD)) (VP (VBZ affects) (NP (DT the) (NN brain)) (, ,) (SBAR (IN though) (S (NP (NP (DT all) (NNS cells)) (PP (IN with) (NP (DT a) (NN nucleus)))) (VP (MD will) (VP (VB have) (NP (DT the) (JJ abnormal) (NN gene))))))) (. .)))
HD affects the brain, though all cells with a nucleus will have the abnormal gene.
(ROOT (S (NP (NP (DT The) (NNS cells)) (PP (IN of) (NP (DT all) (NNS protists)))) (VP (VBP have) (NP (DT a) (NN nucleus))) (. .)))