Female sex hormone. Polarised light micrograph of crystals of beta-Estradiol. This is the most potent of the six naturally-occurring estrogens, the class of hormones associated with the development of female reproductive structures and secondary sex characteristics. Beta-Estradiol is secreted by the ovaries, and is the major controlling hormone in the regulation of the menstrual cycle. It is formed by enzyme-catalysed synthesis from pregnenolone. Magnification: x12 at 35mm size.
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Creative#:
TOP06658369
Source:
達志影像
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RM
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須由TPG 完整授權
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NO
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