NEETZoologyHuman Reproduction
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Cyclic menstruation is an indicator of the normal reproductive phase in human females. Reason (R): The normal reproductive phase extends between menarche and menopause. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
According to NCERT, cyclic menstruation is an indicator of the normal reproductive phase and extends between menarche and menopause. The reproductive phase begins with menarche (the first menstruation at puberty) and ends with menopause (cessation of menstrual cycles around 50 years of age). Because the reproductive capability is strictly bounded by these two events, the occurrence of cyclic menstruation within this window indicates a normal reproductive phase. Therefore, both Assertion and Reason are true, and the