What syndrome, characterized by an absent homologous X chromosome with only a single X chromosome, exhibits features that include a short stature, widely spaced nipples, and webbed neck?

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In Turner syndrome, a sex chromosome is missing, and the person's total chromosome count is 45. Characteristic signs include short stature, female genitalia, webbed neck, shieldlike chest with underdeveloped breasts and widely spaced nipples, and imperfectly developed ovaries. Children with Down syndrome have an IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears. Children with Cri du chat have a characteristic cry and other symptoms include low birth weight, severe intellectual disability, microcephaly (smaller than normal head size), heart defects, and a typical facial appearance. A high-pitched voice and gynecomastia are characteristic of Klinefelter syndrome.

What Syndrome, Characterized by an Absent Homologous X Chromosome with Only