DNA has to replicate before mitosis to keep the number of chromosomes and DNA in the cell consistent. Mitosis is the process of reproducing cells by splitting one cell in half to make two. If the DNA didn't replicate, the two daughter cells wouldn't be able to have a complete strand. DNA replicates by dividing in half, then creating a mirror image of itself. Replication gives both strands of DNA an EXACT copy.
For instance, say a cell contains 46 chromosomes (a human body cell). Before dividing in half, it has to double its amount of chromosomes. That way, each offspring cell has the same amount of chromosomes that a normal body cell has. If there weren't the same amount of chromosomes inside all of your body cells, you would have a disability. So, the amount doubles to 92 chromosomes. Then, when the cell splits, each of the offspring again have 46 chromosomes. This is because the chromosomes split equally between the two cells. If it didn't duplicate, the number of chromosomes in each cell would decrease by half each time. This would lead to some cells having a small amount of chromosomes and some cells still having 46. If this occurred, the body would not function properly. This is the same concept with DNA. *REMEMBER* Chromosomes replicate along with the DNA before mitosis begins.
Hope that this helped! :D
DNA is not copied during mitosis. It is copied in the portion of the cell cycle prior to mitosis during the S phase of interphase and is called DNA Replication.
The DNA sequence of the cell is not supposed to change during mitosis. There are actually "proof reading" and corrective enzymes to check for errors and correct them. However, sometimes a change does occur, and that change is called a mutation. Depending on which gene is affected, a mutation can have no effect or a devastating, life threatening effect, such as cancer.
The process that takes place before mitosis is DNA replication. During DNA replication, the cell's genetic material is copied to ensure that each daughter cell receives a complete set of chromosomes during cell division. This ensures genetic stability and proper distribution of DNA during mitosis.
Before mitosis and meiosis, DNA is loose in the form of chromatin, then it coils into chromosomes right before the mitosis and meiosis.
DNA replicates during the S phase of the cell cycle, which occurs before mitosis.
DNA is not copied during mitosis . Mitosis is meant for division of cell and DNA is divided in two daughter cells .
Mitosis
DNA, the genetic material, of course. Also mitochondria and chloroplasts need to divide. This is the process of mitosis where two daughter cells are produced and both will need the complete complement of genetic material; DNA.
DNA is not copied during mitosis. It is copied in the portion of the cell cycle prior to mitosis during the S phase of interphase and is called DNA Replication.
In both mitosis and meiosis DNA replication only occurs once, during Interphase and Interphase 1, for mitosis and meiosis, respectively.
The diagram that models replication in which DNA is copied before mitosis occurs is called the semi-conservative replication model. In this model, each strand of the original DNA molecule serves as a template for the synthesis of a new complementary strand. This results in two identical DNA molecules, each one containing one original strand and one newly synthesized strand.
mitosis is the process by which the DNA of a cell is copied, so chromosomes replicated throughout the process
There is no DNA of mitosis. Before mitosis, the DNA must be replicated, which occurs during interphase of the cell cycle.
DNA replication is a process at which its complementary strands are synthesized. DNA polymerase and other enzymes participates in the catalysis of this process. DNA replication duplicated the total DNA of a cell before mitosis.
The DNA sequence of the cell is not supposed to change during mitosis. There are actually "proof reading" and corrective enzymes to check for errors and correct them. However, sometimes a change does occur, and that change is called a mutation. Depending on which gene is affected, a mutation can have no effect or a devastating, life threatening effect, such as cancer.
The process that takes place before mitosis is DNA replication. During DNA replication, the cell's genetic material is copied to ensure that each daughter cell receives a complete set of chromosomes during cell division. This ensures genetic stability and proper distribution of DNA during mitosis.
DNA is replicated during the Synthesis (S) phase of cell growth. This comes after G1 and before G2. Mitosis follows G2.