CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells grow and develop during the G1 phase.
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Cells replicate DNA during the S phase.
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Cytokinesis partially splits a cell into two, resulting in a cell with two nuclei.
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Spindle fibers separate sister chromatids during mitosis
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Detailed explanation-1: -Cytokinesis is the physical process that finally splits the parent cell into two identical daughter cells. During cytokinesis, the cell membrane pinches in at the cell equator, forming a cleft called the cleavage furrow.
Detailed explanation-2: -In cytokinesis, the cytoplasm of the cell is split in two, making two new cells. Cytokinesis usually begins just as mitosis is ending, with a little overlap. Importantly, cytokinesis takes place differently in animal and plant cells. Cytokinesis in animal and plant cells.
Detailed explanation-3: -Procaryotic cells divide by a process called binary fission. The single, circular DNA molecule replicates and division occurs by the invagination of the plasma membrane and the laying down of new cell wall between the two chromosomes to produce two separate daughter cells.
Detailed explanation-4: -This is also often known as cytoplasmic division or cell cleavage. Cytokinesis begins in anaphase in animal cells and prophase in plant cells, and terminates in telophase in both, to form the two daughter cells produced by mitosis.