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Human Reproduction — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Reproduction1 Mark
Question
For two statements are given-one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
  1. Both assertion and reason are true, and reason is the correct explanation of assertion.
  2. Both assertion and reason are true, but reason is not the correct explanation of assertion.
  3. Assertion is true, but reason is false.
  4. Both assertion and reason are false.
Assertion: Each seminiferous tubule is lined on its inside by three types of cells.
Reason: These cells are male germ cells, Sertoli cells and Leydig's cells.
✓

Answer

  1. Both assertion and reason are false.

Explanation:

Each seminiferous tubule is lined on its inside by two types of cells, called male germ cells (spermatogonia) and Sertoli cells. The regions outside the seminiferous tubules, called interstitial spaces, contain Leydig's cells. Leydig's cells synthesise and secrete testicular hormones called androgens.

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