During mitosis, DNA in the nucleus is copied and passed to the new cells
Cell Division occurs in a series of stages, or phases.
1st Interphase:
- Chromosomes are copied (#doubles)
- Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome and its copy (sister chromosome) change to sister chromatids at end of this phase.
2nd Prophase:
- Mitosis begins (cells begin to divide)
- Centrioles (or poles) appear to begin to move to opposite ends of the cell.
- Spindle fibers form between the poles.
3rd Metaphase:
- Chromatids (or pairs of chromosomes) attach to the spindle fibers.
4th Anaphase:
- Chromatids (or pairs of chromosomes) seperate and begin to move to opposite ends of the cell.
5th Telophase:
- Two new nuclei form.
- Chromosomes appear as chromatin (threads rather than rods)
- Mitosis ends.
6th Cytokinesis:
- Cell membrane moves inward to create two daughter cells -- each with its own nucleus with identical chromosomes.
DNA replication actually precedes mitosis and occurs during the S phase of interphase. The DNA is duplicated but the two copies (sister chromatids) are still attached at one point called a centromere. At this point it resembles the familiar X shaped of the chromosome. During metaphase of mitosis those chromosomes are lined up at the metaphase plate. The spindle fibers attach to the centrosome pulling the sister chromatids to opposite end of the cell (anaphase). When the cell starts to pinch off, each new cell will then have a complete copy of the DNA.
DNA divides in equal amount and is shared in two daugter cell of mitotic divsion which helps in transfering of genetic information as DNA contain heritable information in them
The double helix unwinds from the histones and the DNA molecule separates.
Since they replicate, i think they're doubled. But, I'm not sure.
The double helix unwinds from the histones and the DNA molecule separates
The DNA copies itself so it can make two separate cells
It splits.
the DNA replicates before mitosis begins
Replication would not be associated with DNA during mitosis.
The DNA replicates before mitosis begins
Before mitosis and meiosis, DNA is loose in the form of chromatin, then it coils into chromosomes right before the mitosis and meiosis.
No, mitosis is the process of cell division. DNA replication is only one part of this process.
There is no DNA of mitosis. Before mitosis, the DNA must be replicated, which occurs during interphase of the cell cycle.
DNA is not copied during mitosis . Mitosis is meant for division of cell and DNA is divided in two daughter cells .
the DNA replicates before mitosis begins
Mitosis is processed by DNA replicating
Replication would not be associated with DNA during mitosis.
no DNA replicates before mitosis. It replicates in the S phase of inter phase
The DNA replicates before mitosis begins
Before mitosis and meiosis, DNA is loose in the form of chromatin, then it coils into chromosomes right before the mitosis and meiosis.
No, mitosis is the process of cell division. DNA replication is only one part of this process.
because the DNA cannot leave the nucleaus. so it creates a duplicate of the DNA so the process of mitosis can carry out
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.
DNA must replicate before mitosis can begin. Mitosis is another word for cell division and so there needs to be two copies of the DNA for the two new cells.