NEET Zoology Hormone Action Mechanism Assertion Reason Question
Assertion (A): Hormones that bind to intracellular receptors typically influence gene expression or chromosome function. | Reason (R): Steroid hormones and iodothyronines interact with membrane-bound receptors to generate second messengers.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
(A) is true but (R) is false.
(A) is false but (R) is true.
Correct Answer
Detailed Explanation
Hormones that bind to intracellular receptors, such as steroid hormones and iodothyronines, mainly regulate gene expression, not through membrane-bound receptors. The statement about second messengers is incorrect.
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