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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: Mammary gland is a modified sweat gland.
Reason: Mammary gland is functional in both male and female.
✓

Answer

  1. Assertion is true, but reason is false.

​​​​​​​​​​​​​​​​​​​​​​​​​​​​Explanation:

Mammary glands are modified sweat glands that lie over the pectoral muscles. They are also present in male but in a rudimentary form. Essential function of mammary gland is milk production, which has nutritive and immunologic functions. Presence of mammary gland in male is a condition called gynecomastia.

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