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NEET 2026
Exam
NEET
Year
2026
Subject
Biology
Chapter
Chapter

NEET 2026 · Biology · Chapter

Development of breasts (gynecomastia) along with overall masculine...

Development of breasts (gynecomastia) along with overall masculine development and sterility is a characteristic feature of which of the following syndromes?

Options

  1. APhenylketonuria
  2. BKlinefelter's syndrome
  3. CTurner's syndrome
  4. DDown's syndrome

Correct answer

B. Klinefelter's syndrome

Step-by-step solution

Klinefelter's syndrome is a chromosomal disorder caused by the presence of an additional copy of the X-chromosome, resulting in a karyotype of 4747, XXY.

Individuals with this syndrome exhibit overall masculine development, but feminine characteristics such as the development of breasts (gynecomastia) are also expressed.

Such individuals are typically sterile.

Answer: Klinefelter's syndrome
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