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
- 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
Terminal differentiation commonly places adult cells in a stable G0 state through cyclin-dependent kinase inhibitors that block progression into the S phase. Fetal cells retain active cell-cycle signalling, allowing continued proliferation.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Cell Injury and Adaptation
31 free Cell Injury and Adaptation MCQs from Pathology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Pathology questions like this
Pathology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cell Injury and Adaptation questions
A patient has increased number of columnar cells in lower esophagus. He has which of the following change_______________?
Disappearance of nuclear chromatin is called as__________?
Lipofuschin is an insoluble endogenous pigment, also known as___________?
The cells which have the capacity to multiply through out their life_____________?
All cells do not divide at the same rate. Events in which phase of the cell cycle determine when a cell is going to replicate ?