$A$: Occasionally,mammary glands are functional in males,and the condition is called gynaecomastia.
$R$: Decreased testosterone in later life may also lead to gynaecomastia. It is usually due to the perturbation of the estrogen-to-androgen ratio.

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

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Similar Questions

$A$: Leydig cells synthesize and secrete testicular hormones called androgens.
$R$: Leydig cells are located between the Sertoli cells.

Testosterone,a hormone responsible for the development of secondary sexual characteristics in males,is produced by the:

Explain the difference between the following terms:
$(1)$ Testosterone - Progesterone
$(2)$ Vasa efferentia - Vas deferens

Leydig cells secrete:

Mention the location and structure of testes and explain about seminiferous tubules.

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