However, the presence of interchange did not effect the overall chiasma frequency which was almost similar in all the cells studied with or without a quadrivalent. In pearl millet, unlike oat and wheat, the chiasma frequency was higher in female sex cells than the male cells. Moreover, the...
Sex determination in spinach is controlled by a pair of sex chromosomes. However, the mechanisms of sex determination in spinach remain poorly understand. Here, we assembled the genomes of both a female (XX) and a male (YY) individual of spinach, and the genome sizes were 978 Mb with 28,...
The organ culture of the rat ventral prostate was chosen as a model to determine whether any of the estrogen effects in vivo on the prostate are direct and expressed at the hormone concentrations normally found in the male. During 2 weeks of culture, estradiol at the high concentration of 105...
Heterosexual transmission of HIV in India is driven by the male use of female sex workers (FSW), but few studies have examined the factors associated with using FSW. This nationally representative study examined the prevalence and correlates of FSW use among 31,040 men aged 15-49 years in Ind...
Germ cells were isolated from XX ovaries and XY and XX Sex-reversed (Sxr/+) testes of mouse embryos 14-16 days post coitum, and the activity of an X-chromo... A, Mclaren,M, Monk 被引量: 0发表: 2019年 Sox9 is sufficient for functional testis development producing fertile male mice ...
For several weeks prior to ovulation, the urine and cervical mucus of female Asian elephants contain extractable chemical agents of low volatility that elicit a high frequency of flehmen responses from bull elephants as an integral part of mating. Subsequent to flehmen responses, male sexual arousal...
Effect of operational sex ratio on female–female versus male–male competitive aggression We compared the patterns of female–female and male–male competition in Japanese medaka (Oryzias latipes) in response to changes in the operational sex ra... JWA Grant,PE Foam - 《Revue Canadienne De ...
Four experiments were carried out to test the stimulatory effects of 8-OH-DPAT on various aspects of "masculine" sexual behavior of male and female rats and on the sexual attractivity of male rats. In Experiment 1 8-OH-DPAT (0.2 mg/kg) stimulated ejaculation frequency in middle-aged (approx...
HrCRY2 was significantly expressed in female flower buds only while HrCO had significant expression in male flowers only. Among the three male and female floral development stages (FDS), male stage II had significant expression of most of the GISD. Information on these sex-specific expressed ...
Results also suggest that female and male sex hormones may bind to different sites on sigma-1 receptors, exerting opposite pharmacological effects. 展开 关键词: Endothelin-1 Sex Hormones Sigma-1/Cocaine receptors Steroid Hormone Receptors DOI: 10.1080/10623320500227275 ...