Results 21 to 30 of about 98,247 (293)
Frontiers in Endocrinology, 2022 17β-estradiol (E2) has been proved to control reproduction, sexual differentiation, and the development of the secondary sexual characteristics of vertebrate females. In decapod crustacean species, crustacean female sex hormone (CFSH), a protein hormone,
Tao Wang +4 more
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The genetics of sexual development in East African cichlid fishes [PDF]
, 2015 Sexual development leads to the formation of males and females. This process can be controlled genetically, environmentally or by a combination thereof. Genetic sex determination is based on single- or polygenic actions, either linked to sex chromosomes ...
Heule, Corina
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Intra- versus inter-sexual selection in the dimorphic electric organ discharges of the snoutfish Marcusenius altisambesi (Mormyriformes, Teleostei) [PDF]
, 2010 Marcusenius pongolensis (South Africa) and M. altisambesi (Upper Zambezi/Okavango) differ in the sex difference of their electric organ discharges (EODs). It is permanent and graded in the former and seasonally dimorphic in the latter.
Kramer, Bernd +2 more
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Frontiers in Endocrinology, 2011 The preference to seek out a sexual partner of the opposite sex is robust and ensures reproduction and survival of the species. Development of female-directed partner preference in the male is dependent on exposure of the developing brain to gonadal ...
Brenda Mae Alexander +2 more
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Putative intermediates in the nerve cell differentiation pathway in hydra have properties of multipotent stem cells [PDF]
, 1990 We have investigated the properties of nerve cell precursors in hydra by analyzing the differentiation and proliferation capacity of interstitial cells in the peduncle of Hydra oligactis, which is a region of active nerve cell differentiation.
Charles +4 more
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Differentiation of adult-type Leydig cells occurs in gonadotrophin-deficient mice [PDF]
, 2003 During mammalian testis development distinct generations of fetal and adult Leydig cells arise. Luteinising hormone (LH) is required for normal adult Leydig cell function and for the establishment of normal adult Leydig cell number but its role in the ...
Baker, P.J. +9 more
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Neuroanatomy and sex differences of the lordosis-inhibiting system in the lateral septum
Frontiers in Neuroscience, 2014 Female sexual behavior in rodents, termed lordosis, is controlled by facilitatory and inhibitory systems in the brain. It has been well demonstrated that a neural pathway from the ventromedial hypothalamic nucleus (VMN) to the midbrain central gray (MCG)
Shinji eTsukahara +2 more
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Specifics of Teenagers’ Aggressive Behavior in Extracurricular Team and Game Activity
Интеграция образования, 2020 Introduction. Behavioral stereotypes learned in adolescence in the absence of self-control skills of aggressive behavior can lead to the formation of a stable destructive model of younger generation’s behavior, which destructively affects society.
Ludmila N. Davidova, Kirill N. Firsov
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Effects of Functional Depletion of Doublesex on Male Development in the Sawfly, Athalia rosae
Insects, 2021 The doublesex (dsx) gene, which encodes a transcription factor, regulates sexual differentiation in insects. Sex-specific splicing of dsx occurs to yield male- and female-specific isoforms, which promote male and female development, respectively.
Shotaro Mine +4 more
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, 2012 Sexual dimorphism is often used as a proxy for the intensity of sexual selection in comparative studies of sexual selection and diversification. The Mexican Goodeinae are a group of livebearing freshwater fishes with large variation between species in ...
Smith, G. +4 more
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