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Digyny
Digyny (also digynia) refers to the process of a diploid ovum becoming fertilized by a monoploid sperm. The result of digyny is a triploid zygote. In humans, both gametes (ovum and sperm) are normally monoploid and give rise to a diploid zygote. Digyny results in gestational abnormalities in humans, including an abnormally small placenta and a very growth-restricted fetus. As a result, the majority of triploid pregnancies are spontaneously aborted. The incidence rate of a live-born triploid human is approximately 1 in 50,000. ==See also==
*Dispermy *Triploid Syndrome
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Digyny」の詳細全文を読む
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