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 ?

Related Mcqs:

1. 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

2. NK cells are effective against viral infected cells only if the cell with infection___________?

   A. Exprss MHC class I proteins
   B. Unable to express MHC class I proteins
   C. Express MHC class II proteins
   D. Unable to express MHC class II proteins

3. The cell with increased mitotic rate and resembling the undifferentiated mesenchymal cells of the same origin is______________?

   A. Anaplastic
   B. Dysplastic
   C. Metaplastic
   D. Hyperplastic

4. Correct sequence of cell cycle ?

   A. Go – G1 – S – G2 – M
   B. Go – G1 – G2 – S – M
   C. Go – M – G2 – S – G1
   D. Go – G1 – S – M – G2

5. Bone marrow stem cells differ from differ from differentiated progenitor stem cells in what respect ?

   A. Provide differentiated terminal cells
   B. Reconstitution of Bone marrow
   C. Formation of the ovum
   D. Act as a repair system for the body

6. In TCA cycle or tricarboxylic acid cycle, which is first formed________________?

   A. Isocitrate
   B. Citrate
   C. Succinate
   D. Fumarate

7. Which among the following is a cell cycle specific anti-neoplastic drug ?

   A. Cyclophosphamide
   B. Doxorubicin
   C. Methotrexate
   D. Cisplatin

8. The cell junctions allowing exchange of cytoplasmic molecules between two cells are called________________?

   A. Gap junctions
   B. Tight junctions
   C. Anchoring junctions
   D. Focal junctions

9. The earliest identifiable cells of T-Cell lineage during maturation are_______________?

   A. CD7+ Pro-T-Cells
   B. CD5+ Pre-T-Cells
   C. CD8+ Pro-T-Cells
   D. CD8+ Pre-T-Cells

10. Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?

    A. Capsule
    B. Flagella
    C. Pili
    D. Mesosomes