Document Detail

Genetic determination of NOR activity in human lymphocytes from twins.
MedLine Citation:
PMID:  7200459     Owner:  NLM     Status:  MEDLINE    
Activity of nucleolar organizer regions (NORs) was studied in cultured blood lymphocytes from 20 monozygotic (MZ) and 20 dizygotic (DZ) twin pairs. The number of Ag-stained NORs, the degree of staining, and the frequency of acrocentric associations were used as criteria of the NOR activity, the acrocentric chromosomes being identified by G-banding. Analysis of intrapair concordance as well as of intrapair variance showed the number of Ag + NORs and the size of Ag-deposits to be highly heritable traits. Intrapair differences in acorocentric association frequency were not significantly higher in DZ compared with MZ twins.
A F Zakharov; A Z Davudov; V A Benjush; N A Egolina
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Human genetics     Volume:  60     ISSN:  0340-6717     ISO Abbreviation:  Hum. Genet.     Publication Date:  1982  
Date Detail:
Created Date:  1982-07-19     Completed Date:  1982-07-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7613873     Medline TA:  Hum Genet     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  24-9     Citation Subset:  IM    
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MeSH Terms
Azure Stains
Chromosome Banding
Lymphocytes / ultrastructure*
Middle Aged
Nucleolus Organizer Region*
Silver Nitrate
Reg. No./Substance:
0/Azure Stains; 7761-88-8/Silver Nitrate

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