<prompt> First evidence of primordial follicle can be seen in ovaries at :5th month of intrauterine life7th month of intrauterine lifeAt bihAt pubey  <response>: At approximately 4 weeks, gonads form on the ventral surface of embryonic kidney at a site between 8th thoracic and 4th lumbar segments. Primordial follicle consists of a large cell, the primordial ovumoogonia, which is surrounded by flattened cells,best termed as follicular epithelial cells. Reference: Shaws Textbook of Gynaecology 15th edition, page 28 