SummaryData are presented to show that there are three serum fl-globulin types in laboratory mice controlled by a pair of alleles. Each allele appears to give rise to three electrophoretically distinct zones in starch gel. Within the inbred strain AI AGS there was variation between mice in the intensity of staining of the three zones. Reciprocal mating data gave no evidence of an effect of fl-globulin type on segregation ratios as has been reported for cattle.

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As part of a large-scale family study in Hawaii, Americans of either Japanese or European ancestry were administered a battery of 15 cognitive tests. Principal component analyses (varimax rotations) yielded the same four major cognitive factors for each of the two ethnic groups, and these factors are defined by strikingly similar factor loadings.

No abstract