Polar bodies develop during

Phase of menstrual cycle when ovulation occurs is

Peak of LH tire occurs during

Part of sperm involved in penetrating egg membrane is

Part of fallopian tube closest to ovary is

Ovulation occurs under the influence of

Ovulation in human female occurs at

Oocyte is liberated from ovary under the influence of LH, after completing

Onset of menstrual cycle at the time of puberty is called

One primary spermatocyte produces four spermatozoa but one primary oocyte produces