Multiple choice

Which of the following is unlikely to be a consequence of testicular growth in males?

  1. Leydig cell stimulation

  2. Decreased Mullerian inhibiting substance

  3. Initiation of spermatogenesis  

  4. Increased mass of seminiferous tubules

  5. Spermatogenesis occurs in many structures of the male reproductive system
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mullerian inhibiting substance (MIS) is responsible for causing the müllerian ducts to degenerate, accounting for the sole development of male internal genitalia in a fetus with a functional testis. If it is absent during fetal development, female internal genitalia would develop by default.

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