Localization by Q-banding of mitotic chiasmata in cases of Bloom's syndrome
- 1 January 1976
- journal article
- conference paper
- Published by Springer Nature in Chromosoma
- Vol. 57 (1) , 1-11
- https://doi.org/10.1007/bf00292945
Abstract
The distribution of mitotic chiasmata from the lymphocytes of three patients with Bloom's syndrome was studied by Q-banding. An estimate was made of the average brightness of the human chromosomes and of the brightness and length of the Q-regions. A strong relationship was found between the average darkness of a chromosome and its chiasma density. The shorter and darker Q-regions contained more chiasmata, with the exception of the chromosome tips which had lower chiasma densities. A few “hot spots” had particularly high chiasma densities. Centric regions contained 17% of the chiasmata. The data are consistent with the assumptions that chiasmata are favored in darker regions and at borders between light and dark regions.This publication has 19 references indexed in Scilit:
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