Question

Seminiferous tubules occur in
A. Liver
B. Kidney
C. Ovary
D. Testis

Answer 1

Hint: Seminiferous tubules are the structures that are the part of male reproductive system and present in the testes of males.

Complete Answer:
 In the seminiferous tubules, meiosis occurs in order to produce male gametes i.e. Sperms.
 These tubules may constitute 90% of testes.

Anatomy of Seminiferous tubules:
- Seminiferous tubules are coiled.
- The epithelium of Seminiferous tubules consist of two types of cells called Sertoli cells and Spermatogenic cells.
- There are Spermatogenic cells present in between the Sertoli cells.

Function of Seminiferous tubules:
- The process called Spermatogenesis (process of producing sperms) takes place in the seminiferous tubules.
- The spermatogenic cells present in between the Sertoli cells undergo meiosis and produce sperms.
- Sertoli cells have supportive and nutrient function.

Therefore, from the above discussion, it is clear that Seminiferous tubules occur in Testis.

Hence, Option D is the correct option.

Note: Seminiferous tubules are coiled and they are the only sites where the spermatozoa or sperms produce.