Polyploidy is characterized by ____.
A) the failure of homologous chromosomes to separate properly during meiosis
B) a condition in which one chromosome is present in three copies
C) a condition in which one member of a chromosomal pair is missing
D) a chromosomal number that is not an exact multiple of the haploid set
E) a chromosomal number that is a multiple of the normal haploid chromosomal set
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