Multiple Choice Questions on Cell Cycle

Q1. Which of the following choice is incorrect in relation to the interphase stage?

a) Period of great metabolic activity
b) It covers over 95% of the total duration of cell cycle
c) Absence of replication of DNA
d) Also called as preparatory phase


Q2. Duplication of DNA occurs in:

a) G1 phase
b) S phase
c) G2 phase
d) M phase


Q3. If cell division is restricted in G1 phase of a cell cycle, the condition is known as:

a) G1 phase
b) G2 phase
c) G0 phase
d) M phase

Q4. Go-phase of cell denotes:

a) Check point before entering the next phase
b) Death of cell
c) Temporary pause
d) Exit of cell from cell cycle

Q5. The sequence of cell cycle is:

a) S, M, G1 and G2
b) G1, G2, S and M
c) S, M, G2 and G1
d) G1, S, G2 and M

Q6. The synthesis of spindle proteins occur during:

a) G1-phase
b) S-phase
c) G2-phase
d) M-phase


Q7. Histone protein synthesis occurs during:

a) G1 phase
b) G2 phase
c) M phase
d) S phase

Q8. During cell cycle, DNA replicates:

a) Once
b) Twice
c) Many times
d) Not at all

Q9. Which of the following doubles during S phase:

a) Mitochondria
b) Chloroplast
c) Golgi body
d) All of the above

Q10. Which of the following phase of a cell cycle is called invisible phase:

a) G1 phase
b) S phase
c) G2 phase
d) M phase


Q11. If the DNA content in a cell at G1 phase is 2C, what will be the DNA content at S phase?

a) 2C
b) 4C
c) 1C
d) None



Q12. If the DNA content of a cell at G1 phase is 2C what will be the DNA content of its daughter cells after mitotic division?

a) 2C
b) 4C
c) 1C
d) None

Q13. The DNA content of a cell at G1 phase is 2C, what will be the DNA content of its daughter cells after meiosis II?

a) 2C
b) 1C
c) 4C
d) All of the above











Answer Key:

1. c      4. d     7. d     10. b   13. b
2. b      5. b     8. a     11. b
3. c      6. c     9. d     12. a