This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Normal Menstruation, Abnormal Menstruation, Menopausal Physiology and forsight of conception, Subject name: Gynaecology & Obstetrics
All are true regarding events related to oogenesis EXCEPT 
Select and explain. 
A. Primary oocyte is arrested at prophase - I at bih, B. LH surge occurs 24-48 hrs. prior to ovulation, C. First polar body is released at ovulation, D. Meiosis-II is a reduction division
D: Meiosis-II is a reduction division
Answer: D: Meiosis-II is a reduction division 
Explanation: Meiosis-II is 'not' a reduction division, as it doesn't reduce the chromosome number into half. Chromosome number gets reduced to half during meiosis- I (reduction division).| Primary oocyte gets arrested at prophase - I before bih (while the baby is still in-utero). LH surge occurs 24-48 hrs. prior to ovulation.