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Which TWO of the following chromosome variations would be the most deleterious in the early development of a multicellular organism?
Tandem duplication of part of one chromosome's arm.
Reciprocal translocation between two chromosomes.
Doubling the entire chromosomal content (genome duplication).
Halving the entire chromosomal content (2n to n).
An aneuploid trisomy.
An aneuploid monosomy.