MCQ on Cell Cycle Regulation

Which of the following sequence correctly describes the cell cycle?

In human somatic cells, the number of kinetochore after the S phase of mitosis is:

If the fertilized egg of a plant has 40 chromosomes, the number of chromosomes present in the pollen mother cell will be:

The shortest phase of the cell cycle is:

Which is the most variable stage of the cell cycle?

The DNA replication in the heterochromatic region of a cell is completed during

The synthesis of histone proteins usually occurs during:

The longest phase of cell cycle is:

Which of the following statement is true?

The active Cyclin-CDK complex regulates the cell cycle through:

Which of the following statement is true regarding Cyclins and CDKs?

The first cyclin produced in the cell cycle, in response to extracellular signals is:

Which of the following cyclin-CDK complex initiates the degradation of nuclear membrane during the cell cycle?

Which of the following is not an actual cell cycle checkpoint?

Spindle assembly checkpoint operates at: