Question
Biology Question on human reproduction
Identify the correct statement from the following.
High levels of estrogen triggers the ovulatory surge
Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards
Sperms released from seminiferous tubules are highly motile
Progesterone level is high during the post-ovulatory phase of menstrual cycle
Progesterone level is high during the post-ovulatory phase of menstrual cycle
Solution
Post-ovulatory phase is also known as the luteal phase. During this period, the follicle proper folds inward on itself and transform into the corpus luteum which is a steroidogenic cluster of cells that produces estrogen and progesterone. The action of progesterone increases the basal body temperature. So, the correct answer is "Progesterone level is high during the post-ovulatory phase of the menstrual cycle."