Question

Ovulation in the human female normally takes place

• A. At the beginning of the proliferative phase
• B. At the end of the proliferative phase
• C. At the mid secretory phase
• D. Just before the end of the secretory phase

Answer 1

The correct option is B At the end of the proliferative phase

The proliferative phase is the second phase of the uterine cycle. Here, estrogen causes the lining of the uterus to grow or proliferate. As the ovarian follicles get mature, they secrete estradiol and estrogen. This estrogen initiates the formation of a new layer of endometrium in the uterus. Near the end of this phase, i.e., the 14${}^{th}$ day, ovulation takes place.
Thus, the correct answer is option B.