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The allele arrangement (4+4)
of spores within an ordered ascus that indicates the lack of recombination
between a locus and its centromere. A linear pattern (4+4) of spore
phenotypes within an ordered ascus for a particular allele pair, produced
when the alleles go into separate nuclei at the first meiotic division,
showing that no crossover has occurred between that allele pair and
the centromere. See Second division segregation. |
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