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Cytogenet Cell Genet. 1979;23(1):23-32. doi: 10.1159/000131298.

Nonhomologous associations of C-heterochromatin at human male meitoic prophase.

Cytogenetics and cell genetics

D J Driscoll, C G Palmer, A Melman

PMID: 761482 DOI: 10.1159/000131298

Abstract

In human male meiotic prophase, nonhomologous pairings and connections between C-heterochromatic regions were demonstrated by C-banding and G-11 staining. Approximately 40% of the pachytene stages exhibited bivalent associations at regions of C-heterochromatin. Nonhomologous associations were seen between all possible morphological types of bivalents. Evidence is submitted suggesting that nonhomologous associations between regions of C-heterochromatin are a fairly common event in many organisms, including man, and the possible roles of this phenomenon in meiosis are discussed.

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