NEET 2022 · BiologyPrevious Year Question
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Osteoporosis is characterised by decreased bone mass and increased chances of fracture. Reason (R): Common cause of osteoporosis is increased levels of oestrogen. In the light of the above statements, choose the most appropriate answer from the options given below:
Answer: (C) is correct but (R) is not correct. Answer: C.
- A.Both (A) and (R) are correct and (R) is the correct explanation of (A)
- B.Both (A) and (R) are correct but (R) is not the correct explanation of (A)
- C.is correct but (R) is not correct✓
- D.is not correct but (R) is correct
Correct Answer
(C) is correct but (R) is not correct
Solution & Explanation
Answer: C. Assertion is correct: osteoporosis is an age-related disorder marked by decreased bone mass and increased chances of fracture. Reason is incorrect: the common cause is DECREASED (not increased) levels of estrogen/oestrogen. Hence A is correct but R is not. NCERT Ch 17, p.227, line 30: "Osteoporosis: Age-related disorder characterised by decreased bone mass" and p.227, line 31: "increased chances of fractures. Decreased levels of estrogen is a" common cause.
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