After World War II, blood groups became a symbol of anti-racial science. This paper aims to shed new light on the post-WWII history of blood groups and race, illuminating the postcolonial revitalization of racial serology in South Korea. In the prewar period, Japanese serologists developed a serological anthropology of Koreans in tandem with Japanese colonialism. The pioneering Korean hematologist Yi Samyŏl (1926–2015), inspired by decolonization movements during the 1960s, excavated and appropriated colonial serological anthropology to prove Koreans as biologically independent from the Japanese. However, his racial serology of Koreans shared colonial racism with Japanese anthropology, despite his anti-colonial nationalism.

Objective: Various studies have shown an association between ABO blood groups and both physical and mental illness. This pilot study was conducted to find out whether there is any association between ABO blood groups and senile dementia of Alzheimer's type. Methods: The sample was selected from 107 patients admitted to the psychogeriatric assessment unit of the district psychiatric hospital over a period of one year. All Caucasian patients of United Kingdom origin above the age of 70 with confirmed diagnosis of Alzheimer's dementia according to DSM-III criteria who had developed dementia after the age of 65 were included (N = 33); 74 patients were excluded for various reasons. Results: Out of the 33 patients there were 21 (64%) with group A, 3 (9%) with group B, 9 (27%) with group O and none with group AB blood. Among the United Kingdom population there were 79,334 (42%) with group A, 16,280 (9%) with group B, 88,782 (47%) with group O and 5,781 (3%) with group AB blood (p = 0.038). Conclusions: Although the number of cases were not large, the results of this study suggest that the prevalence of type A blood group was greater and O was less for Caucasian Alzheimer's subjects than for the general population.

The relationships between some wool characteristics and blood group genotypes (AaAa, AbAb, AaAC, AAb, AC and AbAc) were studied in Ossimi and Rahmani Egyptian fat-tailed breeds of sheep.

Interrupted medullation and coarse wool percentages and grade of wool were significantly related to blood group genotypes (P < 0·01). Fibre length and diameter and continuous medullation percentage were significantly related to genotype (P < 0·05). Staple length, number of crimps per cm, percentages of kemp, clean wool, impurities, moisture regain and fine wool were not significantly related to blood group genotype (P > 0·05).

Some simple methods of estimating inbreeding from tests on a random sample of individuals are discussed. These are mostly iterative procedures, converging to the maximum likelihood estimate, with algorithms for finding standard errors. But there are problems of interpretation, both from the statistical and biological points of view.