1. All organism starts its life with
a) Single cell
b) Many cells
c) Few cells
d) Few organs
Explanation: All organism starts its life with single cell.
2. The sequence of events by which a cell duplicates its genome, synthesize the other constituent
of cells and eventually divides itself into two daughter cells is termed as
a) Cytology
b) Cell division
c) Cell cycle
d) Cell biology
Explanation: The sequence of events by which a cell duplicates its genome, synthesize the other constituent of cells and eventually divides itself into two daughter cells is termed as Cell cycle
3. Which of the following is correct about cell cycle?
a) All events occur in coordinated manner.
b) All events are under genetic control.
c) DNA synthesis occurs only during one specifi c stage in the cell cycle.
d) All of these
Explanation: All of these
4. Cell growth (increase in cytoplasm) is a
a) Continuous process
b) Discontinuous process
c) Irregular process
d) Retrogressive process
Explanation: Cell growth (increase in cytoplasm) is a continuous process
5. Our cell can divide itself once approximately in
a) 24 hours
b) 24 minutes
c) 24 seconds
d) 24 days
Explanation: Our cell can divide itself once approximately in 24 hours
6. Duration of a cell cycle in yeast is approximately
a) 90 seconds
b) 90 minutes
c) 20 minutes
d) 45 minutes
Explanation: Duration of a cell cycle in yeast is approximately 90 minutes
7. Identify A, B, C and D in the below diagram:
a) A–\[G_{1}\] , B–S, C–\[G_{2}\] , D–M Phase
b) A–\[G_{2}\] , B–M Phase, C–\[G_{1}\] , D–S
c) A–M Phase, B–\[G_{1}\] , C–\[G_{1}\] , D–S
d) None of the Above
Explanation: A–\[G_{1}\] , B–S, C–\[G_{2}\] , D–M Phase
8. M-phase in human cell lasts for
a) 1 hour
b) 2 hours
c) 23 hours
d) 4 hours
Explanation: M-phase in human cell lasts for 1 hour
9. Which of the following is correct about Interphase?
a) It is the phase present between two successive M-phase.
b) It lasts for more than 95 per cent in the duration of cell cycle in human cell.
c) It is also known as resting phase.
d) All the above
Explanation: All the above
10. Select the correct matching:
Column I Column II
A. \[G_{1}\] Phase – 1. Gap 1 Phase
B. Cytokinesis – 2. Nuclear division
C. Karyokinesis – 3. Cytoplasmic division
D. S phase – 4. Synthesis phase
a) B‒1, C‒2, A‒3, D‒4
b) A‒1, C‒2, B‒3, D‒4
c) D‒1, C‒2, B‒3, A‒4
d) A‒1, D‒2, B‒3, C‒4
Explanation: A‒1, C‒2, B‒3, D‒4