- 1. Longest phase of the cell cycle.
A) S PHASE
B) G2 PHASE
C) M PHASE
D) G1 PHASE
- 2. It is a series of events in which the cell duplicates its content and then divides into two cells.
A) CYCLINS
B) MITOSIS
C) CELL CYCLE
D) INTERPHASE
- 3. Cdks is an enzyme that adds negatively charged phosphate groups to other molecules in a process called
A) phosphoratorylation
B) Duplication
C) Replication
D) Protein Kinase
- 4. Monitor internal and external environment.
A) G1 PHASE
B) G2 PHASE
C) S PHASE
D) M PHASE
- 5. Which of the following is not part of INTERPHASE
A) G1 PHASE
B) M PHASE
C) S PHASE
D) G2 PHASE
- 6. It is accumulate gradually during G2, once they reach a high enough concentration.
A) SYNTHESIS
B) CYCLINS
C) G1 CYCLINS
D) MITOTIC CYCLINS
- 7. When mitotic cyclins bind to cdks in G2, the resulting complex is known as
A) mitosis-duplicating factor (MDF)
B) mitosis-promoting factor (MPF)
C) mitosis-completing factor (MCF)
D) mitosis-replicating factor (MRF)
- 8. It's bind to cdk proteins during G1.
A) S CYCLINS
B) G1 CYCLINS
C) MITOTIC CYCLINS
D) G2 CYCLINS
- 9. G1 PHASE involves preparation for synthesis and replication of the cellular machinery.
A) TRUE
B) FALSE
- 10. How many hours needed to complete S PHASE?
A) 5-6 hours
B) 7-8 hours
C) 3-4 hours
D) 10 hours
- 11. The ________are established by proteins that use cues from cell’s environment to trigger the entry to and exit from distinct phases of the cell cycle.
A) Checkpoints
B) Mitosis
C) Synthesis
D) Cyclins
- 12. dependent on cyclins, another class of regulatory proteins.
A) Cyclins
B) Cyclin-Dependent Protein Kinase
C) Mitosis cyclins
D) G1 cyclins
- 13. There are two main families of proteins involved in this process Cyclin-Dependent Protein kinase (cdks) and ______.
A) Cyclins
B) Mitosis
C) Cell
D) Chromosomes
- 14. G1 cyclin degradation activates the cdk and leads for entry into S phase.
A) True
B) False
- 15. There are two classes of cyclins: G1 cyclins and ______.
A) mitotic cyclins
B) None of the above
C) Kinetic cyclins
D) G2 cyclins
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