AIPMT PRELIMS2009Zoology-Reproductive System
AIPMT PRELIMS 2009 Zoology Menstrual Cycle MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
A
maintenance of the hypertrophical endometrial lining
B
maintenance of high concentration of sex hormones in the blood stream
C
retention of well-developed corpus luteum
D
fertilisation of the ovum
Correct Answer
Option D
Detailed Explanation
Fertilisation of the ovum leads to pregnancy, which prevents menstruation as the endometrial lining is maintained for embryo implantation.
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