Results 21 to 30 of about 2,243,500 (299)
Uniform female-biased sex ratios in alpine willows [PDF]
, 2012 Premise of the study: The development of biased sex ratios in dioecious plant species has been ascribed to either (1) factors influencing differential adult mortality of male and female plants or (2) factors acting at an early life stage that determine ...
Hik, David S., Myers-Smith, Isla H.
core +1 more source
Polyunsaturated fatty acids influence offspring sex ratio in cows [PDF]
, 2018 Dietary polyunsaturated fatty acids (PUFAs) can influence fertility in farm animals. Some evidence in mice and sheep have suggested that PUFAs may influence offspring sex ratio, which may have significant value for cattle production.
Abo El-Atta, A M A +6 more
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Natural and Engineered Sex Ratio Distortion in Insects
Frontiers in Ecology and Evolution, 2022 Insects have evolved highly diverse genetic sex-determination mechanisms and a relatively balanced male to female sex ratio is generally expected. However, selection may shift the optimal sex ratio while meiotic drive and endosymbiont manipulation can ...
Austin Compton +3 more
doaj +1 more source
Haploid selection, sex ratio bias, and transitions between sex-determining systems.
PLoS Biology, 2018 Sex determination is remarkably dynamic; many taxa display shifts in the location of sex-determining loci or the evolution of entirely new sex-determining systems. Predominant theories for why we observe such transitions generally conclude that novel sex-
Michael Francis Scott +2 more
doaj +1 more source
Modeling and forecasting sex differences in mortality: a sex-ratio approach
Genus, 2018 Female and male life expectancies have converged in most industrialized societies in recent decades. To achieve coherent forecasts between females and males, this convergence needs to be considered when forecasting sex-specific mortality.
Marie-Pier Bergeron-Boucher +3 more
doaj +1 more source
Observable variations in human sex ratio at birth.
PLoS Computational Biology, 2021 The human sex ratio at birth (SRB), defined as the ratio between the number of newborn boys to the total number of newborns, is typically slightly greater than 1/2 (more boys than girls) and tends to vary across different geographical regions and time ...
Yanan Long +3 more
doaj +1 more source
Oxidative stress parameters in plasma of Huntington's disease patients, asymptomatic Huntington's disease gene carriers and healthy subjects : a cross-sectional study [PDF]
, 2007 BACKGROUND : Animal data and postmortem studies suggest a role of oxidative stress in the Huntington's disease (HD), but in vivo human studies have been scarce.
Babić, Tomislav +5 more
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A CRISPR-Cas9 sex-ratio distortion system for genetic control. [PDF]
, 2016 Genetic control aims to reduce the ability of insect pest populations to cause harm via the release of modified insects. One strategy is to bias the reproductive sex ratio towards males so that a population decreases in size or is eliminated altogether ...
Bernardini, F +9 more
core +3 more sources
Horizontal transfer of parasitic sex ratio distorters between crustacean hosts [PDF]
, 1998 Parasitic sex ratio distorters were artificially transferred within and between crustacean host species in order to study the effects of parasitism on host fitness and sex determination and to investigate parasite–host specificity. Implantation of Nosema
Dunn, A.M., Rigaud, T.
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Mother's occupation and sex ratio at birth
BMC Public Health, 2010 Background Many women are working outside of the home, occupying a multitude of jobs with varying degrees of responsibilities and levels of psychological stress. We investigated whether different job types in women are associated with child sex at birth,
Amiot Volodymyr +3 more
doaj +1 more source