Biology - Principles of Inheritance and Variation Question with Solution | TestHub

Turner's syndrome is a chromosomal disorder in females caused by the absence of one X chromosome ($45$, $X0$).

Common symptoms of Turner's syndrome include a webbed neck, a broad shield-shaped chest with widely spaced nipples, short stature, and a low posterior hairline.

Gynaecomastia refers to the development of breast tissue in males, which is a characteristic feature of Klinefelter's syndrome ($47$, $XXY$), not Turner's syndrome.

Answer: Gynaecomastia