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UPSC 1997: The pituitary gland by virtue of its tropic hormones controls the secretory activity of other endocrine glands. Which one of the following endocrine glands can function independent of the pituitary gland?
(a)Thyroid
(b)Gonads
(c)Adrenals
(d)Parathyroid
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Not attemptedCorrect Answer: (d) Parathyroid
Parathyroid glands secrete parathormone in direct response to blood-calcium levels, so their activity is autonomously regulated by a calcium-sensing feedback loop and does not depend on any pituitary tropic hormone. In contrast, the thyroid (via TSH), adrenals (via ACTH) and gonads (via LH/FSH) are all under pituitary control. ([aspireias.com](https://www.aspireias.com/upsc-general-study-10years-paper/1997?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 1997 Science & Technology question?▼
The correct answer is option (d): Parathyroid. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Biology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1997, GS Paper 1, as Question 117. It falls under Science & Technology > Biology.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Biology?▼
UPSC has asked 97 questions from Biology (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.