( ( ( ( Aneuploidy Organisms ) ( with ( complete ( chromosome sets ) ) ) ) ( -LRB- ( ( either ( ( diploid or ) polyploid ) ) -RRB- ) ) ) ( ( are ( ( called euploids ) ( while ( ( those ( that ( ( ( are missing ) or ) ( have ( extra chromosomes ) ) ) ) ) ( are ( called aneuploids ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP Aneuploidy) (NNP Organisms)) (PP (IN with) (NP (JJ complete) (NN chromosome) (NNS sets)))) (PRN (-LRB- -LRB-) (ADJP (DT either) (JJ diploid) (CC or) (JJ polyploid)) (-RRB- -RRB-))) (VP (VBP are) (VP (VBN called) (NP (NNS euploids)) (SBAR (IN while) (S (NP (NP (DT those)) (SBAR (WHNP (WDT that)) (S (VP (VP (VBP are) (ADJP (VBG missing))) (CC or) (VP (VBP have) (NP (JJ extra) (NNS chromosomes))))))) (VP (VBP are) (VP (VBN called) (NP (NNS aneuploids)))))))) (. .)))
Aneuploidy Organisms with complete chromosome sets (either diploid or polyploid) are called euploids while  those that are missing or have extra chromosomes are called aneuploids.
(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.