must be considered a primarily biological phenomenon, related to the male phenotype but not significantly associated with the expression of X chromosome mutations in hemizygous males (Stevenson & Bobrow, 1967), in postnatal life both biological and social factors influence the tertiary sex ratio. By...
MSM who received condoms from Avahan had the lowest odds (odds ratio 0.3; 95% CI 0.1-0.5) of inconsistent condom use with regular male partners. Condom use by MSM increased markedly after implementation of Avahan, though a causal association cannot be assessed with the available data. The ...
作者: TO India 摘要: Jaipur: A division bench of the high court has called for an explanation from the Union and state governments on a PIL seeking court intervention on the failure of the governments as also other agencies in checking teh steep decline in sex ratio. The PIL stated that ...
Do female Drosophila melanogaster adaptively bias offspring sex ratios in relation to the age of their mate? Modification of offspring sex ratios in response to parental quality is predicted when the long-term fitness returns of sons and daughters differ. One fact......