Children who inherit the autosomal dominant gene for myotonic dystrophy from their mother rather than their father may develop the severe neonatal type rather than the late onset type. The families of 22 neonatal type probands and 59 late onset type probands were studied to determine the risk of occurrence and recurrence of the neonatal type. The frequency of the neonatal type in sibs of neonat...

Estimates of the prevalence of gout in different countries vary widely, but previously reported studies have related to selected groups, such as patients attending a hospital clinic, and no reliable information is available of the prevalence of the disease in the general population. Many wellauthenticated reports have shown that the incidence of asymptomatic hyperuricaemia is in the region of 2...

An Ashkenazi Jewish family is described, in which absence of distal interphalangeal creases of fingers with flexion limitation is transmitted through 4 generations with 8 affected individuals. The malformation is caused by an autosomal dominant gene with full penetrance and variable expressivity, and causes only little inconvenience. In one case the joints were normal on radiological examinatio...

Two inbred strains of rat have been identified that show markedly different responses to experimentally induced renal infection. Experiments involving these two strains and their F1 progeny have shown that a genetic factor either protects the host from a tissue-destructive inflammatory response (autosomal dominant gene) or potentiates lesion formation (autosomal recessive gene). The data are th...

An experiment was carried out to study the genetic components for eight panicle characters in rice using an 8-parent half diallel cross excluding reciprocals during Transplant Aman season, 2003. The parental genotypes used in the study were BRRI dhan29, BR4828-54-4-l-4-9, BRR1 dhan28, 1R8, Amol3, 1R6561038-2-4-2-6-3, Minikit and ZhongYu7, which were chosen for their diversity in panicle charact...

Diffusion methods were used to investigate the fixation probability, average time until fixation and extinction, and cumulative heterozygosity and genetic variance for single mutant genes in finite populations with partial inbreeding. The critical parameters in the approximation are the coefficient of inbreeding due to nonrandom mating (F) and the effective population size (Ne), which also depe...