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MCQs

Total Questions : 109 | Page 5 of 11 pages
Question 41. In prokaryotes, just before the cell divides, the two daughter genomes are attached side by side to the
  1.    replication origin
  2.    centromeres
  3.    equatorial plate
  4.    cell membrane
 Discuss Question
Answer: Option D. -> cell membrane
Question 42. Which phase of mitosis is associated with separation of chromatids?
  1.    Metaphase
  2.    Telophase
  3.    Anaphase
  4.    Prophase
 Discuss Question
Answer: Option C. -> Anaphase
Question 43. In the cell cycle replication of the genome occurs in the
  1.    M phase
  2.    G2 phase
  3.    S phase
  4.    G1 phase
 Discuss Question
Answer: Option C. -> S phase
Question 44. The centromeres move toward the poles in __________ .
  1.    interphase
  2.    metaphase
  3.    anaphase
  4.    prophase
 Discuss Question
Answer: Option C. -> anaphase
Question 45. At which of the following check point, mitosis is controlled?
  1.    M
  2.    S
  3.    G2
  4.    G1
 Discuss Question
Answer: Option C. -> G2
Question 46. Sequences that correctly describes the cell cycle is
  1.    -> G1-> G2 -> S -> mitosis -> cytokinesis ->
  2.    -> G1 ->S -> G2 -> cytokinesis -> mitosis ->
  3.    -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
  4.    ->cytokinesis-> mitosis -> G1 -> S -> G2 ->
 Discuss Question
Answer: Option C. -> -> S -> G2 -> mitosis -> cytokinesis -> G1 ->
Question 47. A centromere is
  1.    All of these
  2.    another name for kinetochore
  3.    the structure to which microtubules attach
  4.    a constriction on a chromosome bound to a disk
 Discuss Question
Answer: Option A. -> All of these
Question 48. Which of the following triggers the division of activated T lymphocytes?
  1.    Interlukin 2
  2.    Erythroprotein
  3.    FGF
  4.    PDGF
 Discuss Question
Answer: Option A. -> Interlukin 2
Question 49. Which of the following statements about mitosis is incorrect?
  1.    Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
  2.    Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize
  3.    The daughter nuclei are genetically identical to the parent nucleus
  4.    Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers
 Discuss Question
Answer: Option A. -> Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
Question 50. The term, not related to mitosis is
  1.    somatic cells
  2.    gametes
  3.    chromosomes
  4.    DNA replication
 Discuss Question
Answer: Option B. -> gametes

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