Pathology Why fetal cells continue to divide but terminally differentiated adult cells do not divide – A There are many cyclin inhibitors which prevent cell to enter into S phase in adult B Phosphatase absent in fetal cells C Proteinase is absent in fetus D Absence of CD kinase 💡 Explanation Why fetal cells continue to divide but terminally differentiated adult cells do not divide - ✓ Correct Answer: A. There are many cyclin inhibitors which prevent cell to enter into S phase in adult