( ( ( ( ( ( Polyploid cells ) ( have ( extra ( chromosome sets ) ) ) ) , ) and ) ( aneuploids ( have ( ( ( extra or ) missing ) ( individual chromosomes ) ) ) ) ) . )
(ROOT (S (S (NP (JJ Polyploid) (NNS cells)) (VP (VBP have) (NP (JJ extra) (NN chromosome) (NNS sets)))) (, ,) (CC and) (S (NP (NNS aneuploids)) (VP (VBP have) (NP (ADJP (JJ extra) (CC or) (VBG missing)) (JJ individual) (NNS chromosomes)))) (. .)))
Polyploid cells have extra chromosome sets, and aneuploids have extra or missing individual chromosomes.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN polyploid)) (VP (VBZ is) (NP (NP (DT an) (NN individual)) (PP (IN with) (NP (NP (QP (JJR more) (IN than) (NP (DT the) (JJ correct) (NN number)))) (PP (IN of) (NP (NN chromosome) (NNS sets))))))) (. .)))
A(n) polyploid is an individual with more than the correct number of chromosome sets.