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Cytogenet Cell Genet. 1984;38(4):241-7.

On the nature and extent of XY pairing at meiotic prophase in man.

Abstract

Evidence is presented that pairing between the human X and Y chromosomes could be more extensive at early pachytene than has previously been supposed and could involve even the entire euchromatic portion of the Y chromosome. Following desynapsis over the major part of the X and Y axes, a small paired segment of Xp and Yp remains into late pachytene. Association between the distal tips of Xq and Yq can also be observed in about one half of the spermatocytes examined. A hypothesis linking meiotic pairing to early replicating sites along the chromosomes is proposed.

PMID:
6542485
DOI:
10.1159/000132070
[Indexed for MEDLINE]

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