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Definition of «Indifferent gonad»

Indifferent gonadIndifferent gonadIndifferent gonadIndifferent gonad

Indifferent gonad: In embryonic life, the gonad in males and females is initially identical. This gonad is said to be "indifferent" before it differentiates into a definitive testis or ovary. An indifferent gonad becomes a testis if the embryo has a Y chromosome, but if the embryo has no Y chromosome, the indifferent gonad becomes an ovary. Thus, an XY chromosome complement leads to testes while an XX chromosome complement leads to ovaries. People with just one X chromosome and no Y are females with Turner syndrome, and are infertile. The absence of a Y chromosome permits the indifferent gonad to become an ovary, but both X chromosomes are needed for the ovary to function normally.

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