Human triploid and tetraploid fetuses occur, but they are inviable and undergo spontaneous abortion. Any of the following events could produce a polyploid fetus EXCEPT:
A) defective spindle apparatus during early mitosis.
B) failure of homologous chromosomes to separate.
C) fertilization of an egg by more than one sperm.
D) chromosome duplication without cell division.
E) development of an unfertilized ovum.
Correct Answer:
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