Multiple choice

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

  1. Decreased in the production of Müllerian inhibiting substance

  2. Occurence of spermatogenesis in many structures of the male reproductive system

  3. Leydig cell stimulation

  4. Initiation of spermatogenesis  

  5. Increased mass of seminiferous tubules
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A Correct answer
Explanation

Mullerian inhibiting substance (MIS) is responsible for causing the mullerian 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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