NEETZoologyReproductive Health
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Lactational amenorrhea is considered a highly effective contraceptive method for up to two years following parturition. Reason (R): Intense lactation causes high levels of prolactin which suppresses gonadotropin secretion, thereby preventing ovulation. In the light of the above statements, choose t
Options
- ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
- BAssertion (A) is false but Reason (R) is true.
- CAssertion (A) is true but Reason (R) is false.
- DBoth Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
Correct answer
B. Assertion (A) is false but Reason (R) is true.
Step-by-step solution
Assertion (A) is incorrect because according to NCERT, lactational amenorrhea is effective only up to a maximum period of six months following parturition, not two years. Reason (R) is correct because intense lactation stimulates high secretion of prolactin, which in turn suppresses the release of gonadotropins (LH and FSH) from the pituitary. This prevents the menstrual cycle and ovulation. Therefore, Assertion (A) is false but Reason (R) is true. Answer: Assertion (A) is false but Reason (R) is true.