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9 May, 13:58

Which of these events happens during M phase in the cell cycle?

O

A. The nucleus of a cell divides into two identical nuclei.

O

B. All of a cell's chromosomes are copied when DNA replicates.

. The cell's DNA is checked for errors in replication.

O

D. The cell grows in size by adding cytoplasm and cell organelles.

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  1. 9 May, 14:23
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    "The nucleus of a cell divides into two identical nuclei" happens during M phase in the cell cycle.

    Answer: Option A

    Explanation:

    A series of events is a cell cycle which take place within a cell as it expands and divides. An "interphase" is most time taking phase of cycle as it develops and replicates its chromosomes then prepares for cell division.

    The second phase is "mitosis" which itself have four important subphase like Prophase, Metaphase, Anaphase and Telophase, out of four prophase is most time taking and rank second after interphase in occupying more time.

    Here the replicated chromosomes split in two different nuclei. These genetically identical cells have chromosomes which results after cell-division.
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