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MCQs

Total Questions : 109 | Page 11 of 11 pages
Question 101. . 
DNA replication is controlled at which of the following checkpoint?
  1.    G1
  2.    G2
  3.    M
  4.    S
 Discuss Question
Answer: Option A. -> G1
Question 102. . 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
Question 103. . 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
Question 104. . How many chromatids are there in a duplicated chromosome?
  1.    One
  2.    Two
  3.    Three
  4.    Four
 Discuss Question
Answer: Option B. -> Two
Question 105. . Which of the following is the primary growth phase of a cell?
  1.    G1
  2.    G2
  3.    M
  4.    G0
 Discuss Question
Answer: Option A. -> G1
Question 106. . 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
Question 107. . 
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
Question 108. . The G0 phase is
  1.    a permanent state of all body cells
  2.    the state of most cells in an animal body
  3.    another name for interphase
  4.    all of the above
 Discuss Question
Answer: Option B. -> the state of most cells in an animal body
Question 109. . The G0 phase is
  1.    a permanent state of all body cells
  2.    the state of most cells in an animal body
  3.    another name for interphase
  4.    all of the above
 Discuss Question
Answer: Option B. -> the state of most cells in an animal body

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