<prompt> Which of the following pubertal events in girls is not estrogen dependent?MenstruationVaginal cornificationHeight spurtHair growth  <response>: Ans. is d, i.e. Hair growthRef: Williams Gynae 1sted, p315; Novak 14thed, p992, 15thed, p993In girls the sequence of development of puberty is Mnemonic: GTPH in males.QG Growth spurtT Breast development ThelarcheQP Pubic hair development PubarcheQH Height increases; peak growth velocityQ attainedIn males Menstruation starts MenarcheQAxillary hair develop after menstruation startsQ The main hormone responsible for secondary sexual characteristics in females is estrogen Estrogen leads to- Breast development- Growth spurt, i.e. height attained- Production of cervical mucus- Cornification of vaginal cells- Menstruation menstruation occurs due to withdrawal of progesterone in an oestrogen primed uterus Estrogen leads to As far as hair growth is concerned - in females also the hormone responsible is Androgens produced by adrenals and ovary 