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Question:
How is it possible for people to be born hermaphrodites?



Replies:
Because the sexual organs derive from common precursors, these precursors can develop into a combination of male and female organs, or, often, into the male organ on one side of the body and the female on the other with the external genitals being a hybrid of the two. This condition is rare, with only 302 reported cases between 1899 (the first medical report) and 1974. All of this is caused by a hormonal failure in the fetus, not by the XX or XY genotype. The word hermaphrodite, by the way, comes from the two Greek gods Hermes (male) and Aphrodite (female). You could find out more in a textbook on human development: look in the section on development of the urogenital system. This information comes from Animal Development, by Hopper & Hart, 2nd ed.

--ProfBill



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