More than two physiological gender?Such people are being destroyed!

【Write in the end】

· Among various scientific categories, there are many exceptions to biology, because the classification of biology only represents the usual situation, and the biology and mutations are the big move that breaks the classification restrictions. Almost every classification will always occur. Happening.

· Other diseases that cause gender abnormalities:

Terri syndrome: XO; only a woman with a X chromosome in the gene, the prevalence of about 1/2500. Patients are usually incomplete, amenorrhea, and infertility

5α reductase defect: Because the second 5α reductase is lacking inside the body, the testosterone cannot be converted into dihydrous testosterone, so patients will grow into girls when they are teenagers and develop women's external genitals. In the adolescence, the body began to secrete a type of 5α reduction enzyme, growing the male genitalia of men, and developing male characteristics.

True dual -sex people: Sexual reversal and 5α reductase defects are pseudo -dual sex, and there is a genuine dual -sex man. They also have ovarian and testicles, and each operates normally, developing two sets of reproductive organs. Researchers believe that this may be a unique chimeric. That is, such people have two cells: XX and XY. However, not found that they can produce and sell themselves.

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