question_answer 23)

  Identify the wrong statement from the following. (a) High level of estrogen triggers the ovulatory surge. (b) Oogonial cells start to proliferate and give rise to functional ova in regular cycle puberty onwards. (c) Sperms released from seminiferous tubules are poorly motile/non-motile. (d) progesterone level is high during the post ovulatory phase of menstrual cycle.

Answer:

                  (b)The process of formation of a mature female gamete is called oogenesis. Unlike sperm formation that starts at pubarty egg formation begins before birth. Primordial germ cells complete the proilferative stage or oogenesis in the early embryonal stage when million of gamete mother cells (oogonia) are formed within each faetal ovary, no more oogonia are formed and added after birth.