Explain how an oogonium becomes a tertiary follicle/ovum :
Answer: Oogonia enters meiosis I, but stops during prophase after they have replicated their genomes but before division (they are called primary oocytes at this stage) > resumes at the start of girls first menstruation cycle, finishes meiosis I (they are secondary oocytes/follicles) > this still has two copies of each chromosome, so it must divide again, undergoes meiosis II and becomes a tertiary oocyte> prepares for ovulation
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.