Cell Cycle

AP Biology· difficulty 2/5

cleavage furrow Animal cell cytokinesis

Cytokinesis in an animal cell occurs by:

  • A

    Septum formation by chitin deposition

  • B

    A contractile ring of actin and myosin pinching the cell in two

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  • C

    Construction of a cell plate from Golgi vesicles

  • D

    Endocytosis of the central spindle

Explanation

Animal cells form a cleavage furrow generated by an actomyosin contractile ring just inside the plasma membrane that constricts to divide the cytoplasm.

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