Explore the signs and symptoms, frequency, genetic cause, and inheritance pattern of various conditions, diseases, and syndromes.
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- Y chromosome infertility
- Y chromosome-related azoospermia, see Y chromosome infertility
- Yakut short stature syndrome, see 3-M syndrome
- Young-Simpson syndrome, see Ohdo syndrome, Say-Barber-Biesecker-Young-Simpson variant
- YY syndrome, see 47,XYY syndrome