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Browsing by Subject "Frogs-Eggs-Experiments."
Now showing items 1-4 of 4
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(2012-07-09)Estrogens increase the growth of the frog oviduct. Testosterone also has a growth promoting effect in the northern leopard frog, Rana pipiens, while dihydrotestosterone does not. To investigate the possibility that the ...
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(2012-07-30)The effects of estrogen on egg maintenance were tested in gravid female frogs by injecting them with 0.5 ug estradiol-17B per gram of body weight. Upon autopsy, the animals were found to have greater degeneration of the ...
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(2012-07-10)Testosterone has been shown to cause oviduct hypertrophy in some amphibians. To understand the role of testosterone, ovariectomized and immature frogs were injected with estradiol and testosterone and compared to oil-treated ...
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(2012-07-02)To investigate ovarian steroid metabolism in th¥ frog Rana pipiens, follicles at different stages of development were incubated with 3H-pregnenolone, and the metabolites were analyzed by thin layer chromatography. A decrease ...
Now showing items 1-4 of 4