In animals,cytokinesis is ..........

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(B) In animal cells,cytokinesis occurs by the formation of a cleavage furrow in the plasma membrane. This furrow deepens from the periphery towards th

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Centripetal

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(B) In animal cells,cytokinesis occurs by the formation of a cleavage furrow in the plasma membrane. This furrow deepens from the periphery towards the center of the cell,eventually pinching the parent cell into two daughter cells. Since the process moves from the outside (periphery) towards the center,it is known as centripetal cytokinesis. In contrast,plant cells undergo cytokinesis by the formation of a cell plate,which grows from the center towards the periphery,known as centrifugal cytokinesis.

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$(1)$ Definition / Explanation: Karyokinesis
$(2)$ Definition / Explanation: Cytokinesis

During cytokinesis,the formation of a contractile furrow occurs in which of the following?

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