CELL STRUCTURES AND FUNCTION
CELL CYCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The cell growth
|
|
|
The cell repair
|
|
|
The cell recycle
|
|
|
The cell cycle
|
Detailed explanation-1: -The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue.
Detailed explanation-2: -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-3: -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.