Fertilisation and Implantation

Question 1

What is gametogenesis? What is the name of gametogenesis in males and in females?

Answer 1

Gametogenesis is the production of the gametes/sex cells (spermatozoa and oocytes). This is called spermatogenesis and oogenesis.

Question 2

What are the differences between spermatogenesis and oogenesis?

Answer 2

• Spermatogenesis begins at puberty, lasting after this nearly the entire life. Oogenesis begins in the womb, where a non-renewable number of eggs are made, continuing until the egg is released from the ovaries.
• Many more sperm are made than ovum (quantity difference).
• Per meiotic cycle, four sperm cells are made, whereas only one functioning ovum is made - the other three are non-functioning polar bodies.