A man has enlarged breasts, sparse hairs on the body and sex chromosomal formula XXY. He then suffers from A. Down’s syndrome B. Edward’s Syndrome C. Turner’s syndrome D. Klinefelter’s syndrome
Option D Klinefelter's syndrome is a genetic disorder in which the individuals have an additional X chromosome (XXY). Hence they are male (due to the presence of the Y chormosome) but develop female secondary sexual characteristics like development of breasts and loss of facial hair (due to additional X chromosome). These individuals also show mental retardness and are sterile.
