Read the following statements and choose the correct option: 1. At puberty only 60,000-80,000 primary follicles are left in each ovary. 2. The primary follicles get surrounded by more layers of granulosa cells and a new theca and are called secondary follicles. 3. The secondary follicle soon transforms into a tertiary follicle which is characterised by a fluid filled cavity called ovum. 4. The theca layer is organise

Step-by-step solution

At puberty only 60,000-80,000 primary follicles are left in each ovary. The primary follicles get surrounded by more layers of granulosa cells and a new theca and are called secondary follicles. The secondary follicle soon transforms into a tertiary follicle which is characterised by a fluid filled cavity called antrum. The theca layer is organised into an inner theca interna and an outer theca externa