genital ridge

American  

noun

1. the area in the vertebrate embryo that develops into ovaries in the female and testes in the male.

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Example Sentences

The wandering cells are caught up in the embryo’s initial folds into three layers, then, following signals sent out by nearby cells, migrate to a structure called the genital ridge, which becomes the testes.

From Scientific American

The genital ridge runs along the inner edge of the mesonephros, with which the testicular tubules become connected.

From Project Gutenberg