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5 Cards in this Set
- Front
- Back
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When does the indifferent embryo begin phenotypic sexual differentiation? When is phenotypic differentiation complete?
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During week 7.
Week 20. |
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Where is the SRY gene located? What does the SRY gene code for?
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On the short arm of the Y chromosome.
SRY codes for a protein called testes-determining factor (TDF). |
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Where does the urogenital ridge form from?
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The intermediate mesoderm. This forms a longitudinal elevation along the dorsal body wall, the urogenital ridge.
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What does the urogenital ridge form?
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The coelomic epithelium and underlying mesoderm of the urogenital ridge proliferate to form the gonadal ridge.
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What is the gonadal ridge? Gonadal cords?
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Proliferation of mesothelium (mesodermal epithelium) and the underlying mesenchyme produces a bulge on the medial side of the mesonephros called the gonadal ridge.
Gonadal cords are fingerlike epithelial cords that grow into the underlying mesenchyme. |
