CELL DIVISION
THE CELL CYCLE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
DNA must be replicated
|
|
|
DNA must undergo respiration
|
|
|
Organelles must divide
|
|
|
Organelles must be replicated
|
Detailed explanation-1: -During every cell division, a cell must duplicate its chromosomal DNA through a process called DNA replication. The duplicated DNA is then segregated into two “daughter” cells that inherit the same genetic information. This process is called chromosome segregation.
Detailed explanation-2: -DNA replication is the process by which the genome’s DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.
Detailed explanation-3: -DNA replication must occur before mitosis can occur. Mitosis is the process of cell division, which creates two identical daughter cells from one parent cell. Since DNA serves as the genetic material in cells, it has to be replicated before the parent cell divides so that each daughter cell gets an identical copy.
Detailed explanation-4: -Mitosis is the process of nuclear division, which occurs just prior to cell division, or cytokinesis. During this multistep process, cell chromosomes condense and the spindle assembles.