Cell Cycle Biology 12 Class MCQs


FSC Biology MCQs

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[question]
Period between two consecutive divisions is called
A. Interphase B. Resting phase
C. Mitotic phase D. Cell cycle
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[explanation]A[/explanation]
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[question]
In case of neurons, post mitotic cell escapes cell cycle and remain in _______ phase whthout proliferating further
A. G0 phase B. G1 phase
C. G2 phase D. S phase
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[explanation]A[/explanation]
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[question]
Microtubules are composed of
A. Action protein B. Actin and myosin proteins
C. Sphingomyelin and tubulin D. Tubulin protein and traces of RNA
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[explanation]d[/explanation]
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[question]
A special area of centromere with specific base arrangement and specific proteins where spindle fibers are attached is called
A. Chromatin B. Aster
C. Kinetochore D. Primary constriction
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[explanation]c[/explanation]
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[question]
Which statement is not true about phragmoplast?
A. Formed from vesicle originating from Golgi apparatus B. Present in plants only
C. Formed at the end of anaphase D. Centre of dividing cell
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[explanation]c[/explanation]
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[question]
Feature of cancer cells in common?
A. High nucleus to cytoplasmic ratio B. Prominent nucleoli
C. Many mitosis D. All of these
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[explanation]d[/explanation]
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[question]
Meiosis occurs at the time of
A. Gamete formation in animals B. Spore formattion in plants
C. Growth in animals D. Both a and b
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[explanation]d[/explanation]
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[question]
Tetrad or bivalent is
A. Paired homologous chromosome but not fused complex structure B. 2 unpaired homologous chromosome
C. Paired and fused complex structure D. None of these
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[explanation]A[/explanation]
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[question]
Inability of chromosomes to segregate during anaphase and telophase of meiosis is called
A. Crossing over B. Chromosomal disjunction
C. Chromosomal nondisjunction D. None of these
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[explanation]c[/explanation]
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[question]
Apoptosis
A. Cell death due to tissue damage B. Causes inflammation
C. Internal programme of events by which cell commits suicide D. Damages neighboring cells
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[explanation]c[/explanation]
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[question]
Which of the following category comes under Turner’s syndrome?
A. A male having 2 X chromosomes B. A female having 3 X chromosomes
C. A male having only 1 Y chromosome D. A female having only 1 X chromosome
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[explanation]d[/explanation]
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