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MCQs

Total Questions : 109 | Page 2 of 11 pages
Question 11. Which of the following begins when pairs of sister chromatids align in the center of the cell?
  1.    Anaphase
  2.    Interphase
  3.    Metaphase
  4.    Prophase
 Discuss Question
Answer: Option C. -> Metaphase
Answer: (c).Metaphase
Question 12. How many chromatids are there in a duplicated chromosome?
  1.    One
  2.    Two
  3.    Three
  4.    Four
 Discuss Question
Answer: Option B. -> Two
Answer: (b).Two
Question 13. Each chromosome contains two chromatids by the end of the __________ phase in the life cycle of a human cell.
  1.    C
  2.    G2
  3.    M
  4.    S
 Discuss Question
Answer: Option D. -> S
Answer: (d).S
Question 14. The term homologous chromosomes
  1.    refers to replications of the same chromosome
  2.    is another name for sister chromatids
  3.    must be haploid
  4.    means a pair of chromosomes of the same kind, such as sex chromosomes
 Discuss Question
Answer: Option D. -> means a pair of chromosomes of the same kind, such as sex chromosomes
Answer: (d).means a pair of chromosomes of the same kind, such as sex chromosomes
Question 15. At the center of the cell cycle control system is Cdk, a protein that
  1.    is phosphorylated to become active
  2.    binds to different cyclins
  3.    is only active during mitosis
  4.    manufactures growth factors
 Discuss Question
Answer: Option B. -> binds to different cyclins
Answer: (b).binds to different cyclins
Question 16. Which of the following from a blood clot stimulates the growth of cells in the healing process?
  1.    EGF
  2.    PDGF
  3.    MPF
  4.    NGF
 Discuss Question
Answer: Option B. -> PDGF
Answer: (b).PDGF
Question 17. The spindle forms in the
  1.    G1 phase
  2.    G2 phase
  3.    M phase
  4.    S phase
 Discuss Question
Answer: Option C. -> M phase
Answer: (c).M phase
Question 18. The event(s) which does not occur during interphase, is/are
  1.    Chromatin condenses
  2.    Protein Synthesis
  3.    Organelles replication
  4.    DNA replication
 Discuss Question
Answer: Option A. -> Chromatin condenses
Answer: (a).Chromatin condenses
Question 19. In prokaryotes, just before the cell divides, the two daughter genomes are attached side by side to the
  1.    cell membrane
  2.    replication origin
  3.    centromeres
  4.    equatorial plate
 Discuss Question
Answer: Option A. -> cell membrane
Answer: (a).cell membrane
Question 20. Which phase of mitosis is associated with chromosomes aligned at the center of the cell and centromeres divide?
  1.    anaphase
  2.    interphase
  3.    metaphase
  4.    prophase
 Discuss Question
Answer: Option C. -> metaphase
Answer: (c).metaphase

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