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    CBSE

    Subject

    Biology
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    NEET Biology : Cell Cycle and Cell Division

    Multiple Choice Questions

    41.

    In meiosis division is

    • Ist reductional and IInd equational

    • Ist equational and IInd reductional

    • both reductional

    • both equational

    Answer
    • 42.

    Crossing over occurs in

    • zygotene

    • leptotene

    • pachytene

    • diplotene

    Answer
    • 43.

    Mitotic spindle have main protein

    • tubulin

    • myosin

    • tropomyosin

    • dynein

    Answer
    • 44.

    The term 'Meiosis' was given by

    • Johansen

    • Knoll and Ruska

    • A. Flemming

    • Farmer and Moore

    Answer
    • 45.

    Colchicine prevents the mitosis of the cells at which of the following stage?

    • Anaphase

    • Metaphase

    • Prophase

    • Interphase

    Answer
    • 46.

    Which typical stage is known for DNA replication?

    • Metaphase

    • G1- phase

    • S- phase

    • G2- phase

    Answer
    • 47.

    Number of chromosomes in an angiospermic plant is 14, then the number of chromosomes in synergid cells will be

    • 14

    • 7

    • 28

    • 21

    Answer
    • 48.

    Lampbrush chromosomes are seen in which typical stage

    • mitotic anaphase

    • mitotic prophase

    • mitotic metaphase

    • meiotic prophase

    Answer
    • 49.

    At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?

    • During entire prophase

    • During telophase

    • During S-phase

    • During G2 stage of prophase

    Answer
    • 50.

    The checkpoint in cell cycle plays important role in

    • repairing DNA damage

    • apoptosis initiation

    • assessing DNA damage

    • none of these

    Answer
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