← By age in PCW Germ cells – Ovary (left) – 8.6 PCW 8.6 PCW Germ cells Left OCT4 Ovary Germ cells – Ovary (right) – 8.6 PCW 8.6 PCW Germ cells OCT4 Ovary Right Germ cells – Testis – 8.4 PCW 8.4PCW Germ cells OCT4 Testis