MCQ Questions
Q.1.
The BLANK is a cell structure consisting of microtubules, which forms during early mitosis and plays a role in cell division
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    cytokinesis
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    centrosome(s)
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    sister chromatid(s)
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    mitotic spindle(s)
Q.2.
In eukaryotic cells, chromosomes are composed of _____.
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    DNA and proteins*
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    kinetochore(s)
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    sister chromatid(s)
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    interphase
Q.3.
DNA replication produces two identical DNA molecules, called BLANK, which separate during mitosis
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    sister chromatid(s)
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    centrosome(s)
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    kinetochore(s)
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    chromatin
Q.4.
The beginning of anaphase is indicated by which of the following?
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    interphase
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    mitotic spindle(s)
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    Cohesin is cleaved enzymatically.
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    Duplicated chromosomes attach to the plasma membrane.
Q.5.
A cleavage furrow is _____.
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    a groove in the plasma membrane between daughter nuclei
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    Duplicated chromosomes attach to the plasma membrane.
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    interphase*These are the events of interphase.
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    the mitotic phase*The mitotic phase encompasses both mitosis and cytokinesis
Q.6.
Which of the following correctly matches a phase of the cell cycle with its description?A- G2: cell division B-M: duplication of DNA C-G1: follows cell division D-S: immediately precedes cell division E-All of the above are correctly matched.
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    Plant cells deposit vesicles containing cell-wall building blocks on the metaphase plate; animal cells form a cleavage furrow.
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    G1: follows cell division*After mitosis and cytokinesis, the newly formed daughter cells enter the G1 phase.
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    the mitotic phase*The mitotic phase encompasses both mitosis and cytokinesis
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    Duplicated chromosomes attach to the plasma membrane.
Q.7.
During mitosis, microtubules attach to chromosomes at the BLANK
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    interphase
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    kinetochore(s)
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    centromere(s)
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    centrosome(s)
Q.8.
Which of these phases encompasses all of the stages of mitosis but no other events?
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    This is mitosis
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    cytokinesis
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    Duplicated chromosomes attach to the plasma membrane.
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    centrosome(s)
Q.9.
Cells will usually divide if they receive the proper signal at a checkpoint in which phase of the cell cycle?
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    Duplicated chromosomes attach to the plasma membrane.
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    the mitotic phase*The mitotic phase encompasses both mitosis and cytokinesis
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    G1*In mammalian cells, this checkpoint is termed the restriction point.
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    mitotic spindle(s)
Q.10.
Phases of the cell cycle
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    a groove in the plasma membrane between daughter nuclei
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    Many organisms contain cells that do not normally divide. These cells exit the cell cycle before the G1 checkpoint.Once a cell passes the G1 checkpoint, it usually completes the cell cycle--that is, it divides.The first step in preparing for division is to replicate the cell's DNA in the S phase.In the G2 phase, the centrosome replicates.In early M phase, the centrosomes move away from each other toward the poles of the cell, in the process organizing the formation of the mitotic spindle.At the end of the M phase when mitosis is complete, the cell divides (cytokinesis), forming two genetically identical daughter cells.
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    They need both if they are producing animal gametes.*The form of cell division that produces animal gametes is meiosis, not mitosis. The production of gametes in plants is a function of both mitosis and meiosis.
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    This is mitosis
Q.11.
How is plant cell cytokinesis different from animal cell cytokinesis?
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    the mitotic phase*The mitotic phase encompasses both mitosis and cytokinesis
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    Plant cells deposit vesicles containing cell-wall building blocks on the metaphase plate; animal cells form a cleavage furrow.
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    interphase
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    G1: follows cell division*After mitosis and cytokinesis, the newly formed daughter cells enter the G1 phase.
Q.12.
Which of the following is found in binary fission but not in mitosis?
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    the mitotic phase*The mitotic phase encompasses both mitosis and cytokinesis
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    This is mitosis
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    Duplicated chromosomes attach to the plasma membrane.
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    G1: follows cell division*After mitosis and cytokinesis, the newly formed daughter cells enter the G1 phase.