Journal ArticleDOI
Xga blood group system and the sex ratio in man.
TLDR
An immunological incompatibility between mother and foetus in the sex-linked Xga blood group system may help to explain the preferential birth of males.Abstract:
An immunological incompatibility between mother and foetus in the sex-linked Xga blood group system may help to explain the preferential birth of males.read more
Citations
More filters
Journal ArticleDOI
Hepatitis B Virus and Sex Ratio of Offspring
Journal ArticleDOI
Hepatitis B virus and sex ratio of off-spring: the response to hepatitis B virus infection in parents is related to the sex ratio of their children.
Journal ArticleDOI
Birth order in girls with gender identity disorder.
TL;DR: Compared to the controls, the probands were born early compared to their sisters, but not to their brothers, the inverse of two previous studies of boys with gender identity disorder, who were later born relative to clinical control boys.
Journal ArticleDOI
Birth Order and Sibling Sex Ratio in Androphilic Males and Gynephilic Females Diagnosed With Gender Dysphoria From Iran
Behzad S. Khorashad,Kenneth J. Zucker,Ali Talaei,Farzaneh Rajabzadeh,Zahra Hamed,Pardis Akbarian,Ray Blanchard +6 more
TL;DR: The fraternal birth order effect that was found for the transgender androphilic males, similar to that found in gay men, suggests a common underlying causal mechanism and generalizability for the study of birth order and sibling sex ratio that has been restricted to Western samples of adults diagnosed with gender dysphoria.
Journal ArticleDOI
Why is the XX Fitter? Evidence Consistent with an Effect of X-heterosis in the Human Female from Sex Ratio Data in Offspring of First Cousin Marriages
TL;DR: To what extent does heterozygosity for X-linked loci contribute to survival of the XX female and the advantage accruing to the XXfemale because of this factor may be defined as X-heterosis.
References
More filters
Journal ArticleDOI
Determinants of Sex Proportions in Man, with Consideration of the Evidence Concerning a Contribution from X-linked Mutations to Intrauterine Death
Alan C. Stevenson,Martin Bobrow +1 more
TL;DR: The author doubts that it is possible to measure any component of male mortality in utero attributable to x-linked mutations, as a large number of assumptions are necessary to make any estimate of the supposed effects of x- linked mutations to late fetal mortality.
Journal Article
Consanguinity and blood group distribution in an Amish Isolate.
Journal ArticleDOI
Xg blood group frequencies in some further populations.
W J Dewey,J D Mann +1 more
TL;DR: The Grand Rapids and Bluffton Caucasian populations are each derived from obstetrical series in private general hospitals in their respective locations, and consist of married couples ascertained through confinement of the wife for delivery.
Journal ArticleDOI
Apparent interaction between the Xg-a blood group system and the sex ratio.
J D Dewey,J D Mann,D A Wilson +2 more
TL;DR: Analysis of the sex ratio of progeny from the various parental Xga mating types indicates that there is an interaction between this sex-linked blood group system and the sex ratios.