When puberty (which can be described as adrenarche or menarche) occurs (it's getting ever earlier with a combination of abundant nutrition and environmental factors), THEN meiosis begins to form eggs (in the female) and sperm (in the male).    From Wordnik.com.  [National Catholic Reporter] Reference

Premature adrenarche leads to polycystic ovary syndrome?.    From Wordnik.com.  [WHAT REALLY HAPPENED] Reference