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Before mitosis begins, the chromosomes in a cell replicate. This occurs during the S (synthesis) phase. Chromosomes need to replicate so that when the cell divides at the end of mitosis, the daughter cells each recieve a copy of the chromosomes.

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12y ago

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How many chromosomes do you have in cells before and after mitosis?

Before mitosis, cells have a diploid number of chromosomes, which means they have 46 chromosomes in humans. After mitosis, the daughter cells also have a diploid number of chromosomes, so they also have 46 chromosomes.


What do chromosomes do before dividing in mitosis?

They double into more chromosomes.


Before mitosis or meiosis DNA coils into what?

Before mitosis and meiosis, DNA is loose in the form of chromatin, then it coils into chromosomes right before the mitosis and meiosis.


If an Allium cell has 30 chromosomes before Mitosis how many chromosomes are present in each daughter cell?

If an Allium cell has 30 chromosomes before Mitosis, then each daughter cell will also have 30 chromosomes after Mitosis. This is because during Mitosis, the chromosomes replicate and are equally distributed between the two daughter cells.


When are chromosomes duplicated before or after mitosis?

during


What is a term that represents the number of chromosomes in th nucleus before mitosis?

The number of chromosomes in the nucleus before mitosis is dependent on the species. The exact number is called the ploidy of the animal.


How many chromosomes were present in the nucleus when mitosis began?

Before mitosis begins, a cell has a diploid number of chromosomes, which means there are two sets of chromosomes. This is because during interphase, before mitosis begins, the DNA has already replicated, so the cell contains identical copies of each chromosome.


Chromosomes form during what?

Chromosomes form during cell division, specifically during the process of mitosis. During mitosis, the chromosomes condense and line up before being separated into two daughter cells.


Why are chromosomes called doubles chromosomes just before mitosis begins?

Amount of DNA that has been doubled


What is the number of chromosomes before mitosis?

Body cells are the only cells that go through the process of mitosis. So body cells have 46 chromosomes or 23 chromosome pairs. Before the cells separate the chromosomes duplicate and split so that the new cell has an identical DexyriboNucleicAcid.


What happens before meiosis begin?

Interphase. The process of meiosis has many similarities to the process of mitosis: chromosomes replicate before the process begins, and shorten and thicken to look like the chromosomes at the beginning of mitosis (condensation).


Why do cells need to double their chromosomes before mitosis starts?

They are in need of reproduction.