Spatial relationship of human X and Y chromosomes at somatic metaphase.

Abstract:

:A total of 592 cells was examined from 38 normal humans who had either small or very large Y chromosomes. Chromosome identification was based on the QFQ technique. The distance between the X and Y chromosome was measured from centromere to centromere. The spatial distance between X and Y was significantly smaller when the Y was small as compared to a very large Y (p less than 0.05). The distance increased as the length of the Y chromosome increased and a significant correlation coefficient (r = 0.58) was found (p less than 0.05). It is concluded that the length of the Y chromosome appears to play a major role in the non-random distribution of X and Y at somatic metaphase. The size and XY relationship in aneuploidy resulting from paternal non-disjunction and in patients with XXY and XYY should be investigated.

journal_name

J Med Genet

authors

Dosik D,Verma RS

doi

10.1136/jmg.20.6.450

subject

Has Abstract

pub_date

1983-12-01 00:00:00

pages

450-1

issue

6

eissn

0022-2593

issn

1468-6244

journal_volume

20

pub_type

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