Pathology – MCQ 25 – Why adult cells stop division?

Why fetal cells continue to divide but terminally differentiated adult cells do not divide
a) There are many cyclin inhibitors which prevent cells from entering into S phase in adult
b) Phosphatase is absent in fetal cells
c) Proteinase is absent in fetal cells
d) Absence of CD kinase

Correct answer : a) There are many cyclin inhibitors which prevent cells from entering into S phase in adult