Which hormone is responsible for stimulating the development of secondary sexual characteristics in males?

• A. Estrogen
• B. Testosterone
• C. Progesterone
• D. Dihydrotestosterone

Answer: (B)

Testosterone is the primary hormone responsible for stimulating the development of secondary sexual characteristics in males. These characteristics include the deepening of the voice, increased muscle mass, facial and body hair growth, and other physical changes that typically emerge during puberty. Produced mainly in the testes, testosterone plays a crucial role in male sexual development and overall reproductive function.

While other hormones listed also have important roles, they do not primarily drive the development of secondary sexual characteristics in males. Estrogen, for instance, is more commonly associated with female sexual characteristics, and although it is present in males, it does not have the same impact as testosterone. Progesterone is primarily involved in the menstrual cycle and pregnancy in females, and while it has some functions in males, it does not influence sexual characteristics. Dihydrotestosterone, a potent derivative of testosterone, does contribute to certain aspects of male development, but testosterone itself is more recognized as the main hormone responsible for driving the overall changes associated with male secondary sexual development.