CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cell growth
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The cell repair
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The cell recycle
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The cell cycle
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Detailed explanation-1: -Mitosis helps organisms grow in size and repair damaged tissue.
Detailed explanation-2: -Cell division is essential for growth, repair and reproduction.
Detailed explanation-3: -Several cell cycle checkpoints function to ensure that incomplete or damaged chromosomes are not replicated and passed on to daughter cells (Figure 14.8). One of the most clearly defined of these checkpoints occurs in G2 and prevents the initiation of mitosis until DNA replication is completed.
Detailed explanation-4: -The cell cycle has two major phases: interphase and the mitotic phase (Figure 6.3). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated and the cell divides.
Detailed explanation-5: -All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences. Single-celled organisms use cell division as their method of reproduction.