Now showing items 1-10 of 19
Mutagenicity of aliphatic epoxides
(Elsevier, 1978-11)
The mutagenicity of 17 aliphatic epoxides was determined using the specially constructed mutants of Salmonella typhimurium developed by Ames. The activity of these epoxides together with those reported in the literature ...
Genetic studies of the Macushi and Wapishana Indians
(Springer-Verlag, 1977-01)
Blood samples from 509 Macushi and 623 Wapishana Amerindians of Northern Brazil and Southern Guyana have been analyzed with reference to the occurrence of rare variants and genetic polymorphisms of the following 25 systems: ...
A rapid electrophoretic technique for human and Chinese hamster galactokinase
(Springer-Verlag, 1975-12)
In this paper a simple direct staining method is described for the detection of the human and Chinese hamster forms of galactokinase as separated by electrophoresis.
The length of the Y chromosome in Nubian males and its location in metaphase spreads
(Springer-Verlag, 1979-01)
A total of 242 metaphase plates from the peripheral blood of Nubian males living near Aswan, Egypt were studied with respect to the length of the Y chromosome and its location in metaphase spreads. The length of the Y was ...
The effect of parental consanguinity and inbreeding in Hirado, Japan
(Springer-Verlag, 1970-07)
A census of Hirado, Japan in the summer of 1964 produced data on the reproductive performances of husbands and wives for 10,530 marriages where either the husband, the wife, or both were alive and residing in the city at ...
Possible cases of relaxed selection in civilized populations
(Springer-Verlag, 1971-12)
Genetic traits which are disadvantageous or deleterious in “primitive” cultures, of hunters and food gatherers, have very low frequencies in almost all cases. There are a few special exceptions, such as the sickle cell ...
Genetic studies of the Macushi and Wapishana Indians
(Springer-Verlag, 1977-01)
Blood samples from 509 Macushi (3 villages) and 623 Wapishana (11 villages) of Northern Brasil and Southern Guyana have been analyzed with respect to the phenotype and gene frequencies at the following 12 polymorphic loci: ...
Partial trisomy of the long arm of human chromosome 1 as demonstrated by in situ hybridization with 5S ribosomal RNA
(Springer-Verlag, 1977-01)
In a newborn boy with multiple malformations, a tandem duplication was detected at the distal end of the long arm of one human chromosome 1. The Giemsa bands, 1q31 to 1q43–44, were repeated serially. Since 5S rRNA genes ...
Effects of DNA damaging agents on cultured fibroblasts derived from patients with Cockayne syndrome
(Elsevier, 1979-01)
The cytotoxic action of physical and chemical agents on 10 skin fibroblast strains in culture derived from individuals with Cockayne's syndrome was measured in terms of colony-forming ability. As compared to fibroblasts ...
Regional chromosomal localization of the human gene for galactose-1-phosphate uridyltransferase
(Springer-Verlag, 1977-01)
In the progeny of somatic cell hybrids formed by fusion of human lymphocytes and Chinese hamster mutant cells, a single human chromosome A2 was selectively retained when grown in appropriate medium.