摘要:

Human red cell NADH diaphorase isozyme patterns have been examined in 3,060 unrelated Australians of European origin, by starch gel electrophoresis. 26 people with variant isozyme patterns were encountered: 12 were phenotype Dia 2–1 and 13 were Dia 4–1. A new variant isozyme pattern (Dia 7–1) was identified. No variants were identified in 100 Melanesians and 70 Australian Abori

ISSN:0001-5652    

DOI:10.1159/000152723

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

The PGM1 and PGM3 phenotypes were examined in extracts of chorionic tissue from 97 spontaneous and 266 induced abortions. Contamination by maternal tissue or blood cells was shown to be insignificant. A positive association was found between the PGM11 and PGM13 genes. No significant differences in phenotype distributions were found between the population of spontaneously aborted fetuses and the normal fetal or adult populations. Hence it was concluded that there is no evidence so far for prenatal selection operating in the PGM1 and PGM3 polymorphisms.

ISSN:0001-5652    

DOI:10.1159/000152724

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Extent of genic variability among 22 tribal groups of South American Indians in terms of net codon differences per locus has been studied on the basis of determinations on ten genetic systems. The possibility of more than one (other than the north-south route, considered by others) migrational pattern is discussed in the light of the existing genetic variability among the Andean highland and the jungle populations. Genic similarities (as measured by gene identity) are related with geographic proximities which reflect the importance of random genetic drift in creating the present genic divergence among these population groups. Although the materials used in this paper form probably only a non-random sample of structural genome, intralocus variance (sampling) is found to contribute only a little in the variabilities of heterozygosity or genetic distance.

ISSN:0001-5652    

DOI:10.1159/000152725

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

The properties of a test, suggested by Haldane [1938], for a Mendelian segregation ratio of 0.25 when ascertainment is incomplete are investigated. The error rates associated with this procedure show the weakness of this specific test. An alternative test based on a Χ2 statistic is illustrated with the data on human albinism originally analyzed by Haldane [1938]

ISSN:0001-5652    

DOI:10.1159/000152726

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Experiments show that the GPT starch gel pattern of any given blood sample is fully reproducible, and that an individual’s GPT type is constant at least after the age of 1 month. GPT isoenzyme patterns are influenced and may be changed during storage of unfrozen blood. The interval between sampling and preparation of haemolysate should therefore not exceed 4 days. In haemolysates kept at –25 °C the isoenzyme patterns remain unchanged for at least many months. The GPT system forms a valuable means for statistical information in paternity cases. Thus, the overall chance is 18.7% for paternity exclusion or strong evidence against paternity for a falsely alleged father. Based on a material of 1,316 paternity cases, it is concluded that the GPT system is a valuable supplement to other systems of genetic markers in cases of disputed pater

ISSN:0001-5652    

DOI:10.1159/000152727

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Five caste groups (Hindu) and a Muslim population from southern West Bengal are studied for the seven blood group systems, i.e. A1A2BO, MNS, Rh, Kell, Duffy P and Lewis. Cate heterogeneity was found to be statistically insignificant. The two religion groups are also shown to be genetically similar to each other with respect to these blood group loci.

ISSN:0001-5652    

DOI:10.1159/000152728

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

The sex ratio of 67,205 single, live births was significantly associated with maternal ABO, but not Rh, types. The proportion of males was highest among children of AB mothers in both the Rh+ and Rh– subpopulations, corroborating previous data. The findings are discussed with relation to earlier reports and possible mechanism

ISSN:0001-5652    

DOI:10.1159/000152729

出版商:S. Karger AG    

年代:1975

数据来源: Karger

摘要:

Digital and palmar dermatoglyphs in a random sample of normal Whites from Durban are described. The sample consisted of 200 males and 200 females. Features examined included frequency and distribution of finger patterns, digital and total ridge count, a–b score, and palmar topography. Data from this study are compared to similar data from South African Negroes, Indians, and Coloureds (mixed racial origin) and several outstanding racial characteristics are demonstrated in the dermatoglyphic profiles. It is suggested that the Indians’ dermatoglyphic profile is dominant to those of Whites and Negr

ISSN:0001-5652    

DOI:10.1159/000152730

出版商:S. Karger AG    

年代:1975

数据来源: Karger

ISSN:0001-5652    

DOI:10.1159/000152731

出版商:S. Karger AG    

年代:1975

数据来源: Karger