You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Not true about development of ovary ? and explain in detail?
Development of ovary Coelomic epithelium on medial side of the mesonephros becomes thickened to form genital ridge, the site where ovary develops. Genital ridge is covered by germinal epithelium (previous coelomic epithelium). From these germinal epithelium, cords of cells (sex cords or medullary cords) proliferate and grow into the underlying mesoderm. Primordial germ cells which are developed from endodermal cells of hindgut (pa of yolk sac), migrate to region of developing ovary (genital ridge area) and give rise to oocytes. The sex cords become broken up into small masses. The cells of each mass surround one oocyte to form primordial follicle. At bih each ovary contains about 2 million primary follicles.