| Human chromosomal polymorphism. VII. The distribution of chromosomal Q-polymorphic bands in different human populations. | |
MedLine Citation:
|
PMID: 6862444 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The distribution of chromosomal Q-polymorphic bands was studied in different human populations. The populations studied showed no differences in the relative amount of Q bands in all the 12 polymorphic loci of seven autosomes, but interpopulation differences did exist in the absolute amount of Q bands in all the 12 potentially polymorphic loci of seven autosomes, these differences consisting of uniform increases or decreases in this absolute amount. Comparisons of the mean number of Q-heterochromatin bands with fluorescence levels 4 and 5 per individual showed a consistent prevalence of this quantitative parameter of chromosomal Q polymorphism in females as compared to males in all the national groups. It is suggested that there is some dosage compensation of chromosomal Q-heterochromatin material in females due to the absence of a chromosome in their genome, which is able to "compensate" for the large Q band in chromosome Y which is present only in the karyotype of males. |
Authors:
|
A I Ibraimov |
Related Documents
:
|
24177714 - First-trimester combined screening is effective for the detection of unbalanced chromos... 1733664 - Detection of structural chromosome aberrations in immunophenotyped mitoses. 19384744 - Automating giemsa banding of chromosomes: protocol for and evaluation of the use of a p... 6735414 - Quantitative analysis of c bands in chromosomes 1, 9, 16 and y in caucasian and japanes... 8615634 - Loss of heterozygosity in chromosome 4q12-q13 in hepatocellular carcinoma in southern a... 9299884 - Characterization of mitochondrial dna and y-chromosome haplotypes in a uruguayan popula... |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Human genetics Volume: 63 ISSN: 0340-6717 ISO Abbreviation: Hum. Genet. Publication Date: 1983 |
Date Detail:
|
Created Date: 1983-08-26 Completed Date: 1983-08-26 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 7613873 Medline TA: Hum Genet Country: GERMANY, WEST |
Other Details:
|
Languages: eng Pagination: 384-91 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Africa African Continental Ancestry Group Asia Asian Continental Ancestry Group Chromosome Mapping European Continental Ancestry Group Female Genetics, Population* Humans Male Polymorphism, Genetic* USSR |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Confirmation of a de novo duplication, dup(10)(q24 leads to q26), by GOT1 gene dosage studies.
Next Document: The distribution and interaction of haemoglobin variants and the beta thalassaemia gene in Liberia.