Dictionary of Human Evolution and Biology

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Chromosomal Species

One of the mechanical determinants of the reproductive species; all individuals with the same diploid number and chromosome structure are members of this set (i.e. the linear arrangements of genes on chromosomes are also identical). Phenotypically similar individuals that are either aneuploid or have structural rearrangements of chromosomes, although perhaps chosen as mates, could experience meiotic problems that result in a reproductive barrier.

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