skyyk1679 skyyk1679 15-02-2024 Biology contestada Of the 2 million oogonia formed before birth that begin to undergo meiosis, only about a. 40,000 remain at puberty.b. 20,000 remain at puberty.c. 200,000 remain at puberty.d. 1 million remain at puberty.e. 500,000 remain at puberty.