If more than one sperm cell were able to enter an egg, what might be the result?

Oogenesis is the creation of the female gamete and spermatogenesis is the creation of the male gamete. Meiosis begins in male once they reach puberty (they do both meiosis I and II) and do it for the rest of their lives non-stop Females begin Meiosis I in the womb and they don't start to do Meiosis II until they reach puberty. Unlike males, females don't form gametes non stop and they stop forming gametes at menopause. The end result for males are four sperm cells For females, they create three small polar bodies and one big daughter cell. The polar bodies give themselves up and give their nutrients to the big cell. So for females, they create only one gamete while males create four. I hope this is helpful =)