Synapsis of a chromosomal pair heterozygous for a pericentric inversion and the presence of a heterochromatic short arm.
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Analysis of meiotic pairing configurations in a deer mouse heterozygous for both a pericentric inversion and the presence of a heterochromatic short arm at chromosome 15 revealed straight-paired synaptonemal complexes with equal axial lengths in a majority of the pachytene nuclei. Nonhomologous pairing in this bivalent occurs by direct heterosynapsis of the inverted segments followed by synaptic adjustment of the heterochromatin heteromorphism.
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Hale, D. W., & Greenbaum, I. F.
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