Results 11 to 20 of about 969,017 (358)
Mismatches between the genetic and phenotypic sex in the wild Kou population of Nile tilapia Oreochromis niloticus [PDF]
PeerJ, 2019 Sex determination and sex chromosomes can be very diverse between teleost species. The group of tilapias shows a polymorphism in sex determination not only between closely related species but also between domestic strains within a species.
Rokyatou Sissao +3 more
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Polygenic sex determination [PDF]
Current Biology, 2013 What is sex determination? Sex determination is the mechanism by which sexual organisms direct gonad development towards distinct but reproductively compatible outcomes. Molecular signaling cascades in the developing gonad provide instructions to the tissue to develop as male or female (or in some cases hermaphrodite), and these signals can be ...
Moore, Emily C., Roberts, Reade B.
openaire +2 more sources
Sex determination in mythology and history [PDF]
, 2005 The history of ideas on how the sexes became divided spans at least three thousand years. The biblical account of the origin of Eve, and the opinions of the philosophers of classical Greece, have unexpected bearings on present-day ideas.
Mittwoch, U
core +2 more sources
Microbial manipulation of host sex determination [PDF]
, 2012 A recent study in the lepidopteran Ostrinia scapulalis shows that endosymbionts can actively manipulate the sex determination mechanism of their host. Wolbachia bacteria alter the sex-specific splicing of the doublesex master switch gene.
Beukeboom, Leo W.
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BMC Evolutionary Biology, 2020 Background Vertebrates exhibit diverse sex determination systems and reptiles stand out by having highly variable sex determinations that include temperature-dependent and genotypic sex determination (TSD and GSD, respectively).
Paola Cornejo-Páramo +6 more
doaj +1 more source
Ecology and Evolution, 2021 Polymorphisms can lead to genetic isolation if there is differential mating success among conspecifics divergent for a trait. Polymorphism for sex‐determining system may fall into this category, given strong selection for the production of viable males ...
Peta Hill +3 more
doaj +1 more source
Journal of Family Medicine and Primary Care, 2021 Background: Sex ratio is an important sociodemographic characteristic of the country reflecting the status of its women and underlying socioeconomic and cultural patterns.
Shalini Rawat +2 more
doaj +1 more source
Female Sex Development and Reproductive Duct Formation Depend on Wnt4a in Zebrafish. [PDF]
, 2019 In laboratory strains of zebrafish, sex determination occurs in the absence of a typical sex chromosome and it is not known what regulates the proportion of animals that develop as males or females.
Bruce W. Draper +8 more
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Antenatal Sex Determination [PDF]
Nature, 1956 FOR thousands of years people have had a desire to know the sex of an expected child. Many methods have been tried for antenatal sex determination; but even modern ones, based upon scientific hypotheses, have failed to receive sufficient confirmation for general acceptance.
F, FUCHS, P, RIIS
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Sexual and geographic dimorphism in northern rockhopper penguins breeding in the South Atlantic Ocean [PDF]
, 2020 The Endangered northern rockhopper penguin Eudyptes moseleyi, like all penguins, is monomorphic, making sex determination of individuals in the field challenging.
Bond, AL +4 more
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