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It ensures that each newcell will be an exactcopy of its parent cell.
Maude Kulas
Wiki User
∙ 12y agoChromosomes must be copied before cells divide because it ensures that each cell will be an exact copy of its parent cell. How a cell makes more cells depends on whether the cell is prokaryotic ( has no nucleus ) or eukaryotic ( has a nucleus ) .
Wiki User
∙ 14y agoChromosomes must replicate so that both cells that are formed from cell division can have the same genetic material.
Wiki User
∙ 12y agoChromosomes must replicate so that both cells that are formed from cell division can have the same genetic material.
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What happens to genes when cells divide?
If a cell divides by mitosis both cells will have the diploid (2N) number of chromosomes. These two cells will have identical DNA If a cell divides by meiosis subsequent cells will have the haploid (1N) number of chromosomes. These cells will have the same basic amount of DNA but the DNA will not be identical. If the sex chromosomes are different sizes (like the X and Y chromosomes of humans) the DNA will vary a bit more dramatically if the meiosis includes the additional variation of the different sex chromosomes.
How many chromosomes do cells have when they divide?
Twice the number in the cell. So if the cell normally has 46 chromosomes, such as in somatic human cells, the dividing cell would have 92 chromosomes just before division. With germ cells such as sperm and egg this would be half that. Sperm and egg cells in humans would contain 23 chromosomes and 46 just before division.With N representing the number of chromosomes in an organism:Mitosis (somatic cells) 2N -> 4N division -> 2N
What two paired cell structures are copied before mitosis begins?
Before mitosis begins, the chromosomes and other materials are copied. The pair of centrioles which are also copied. Each chromosome now consist of two chromatids.
When chromosomes replicate they produce?
when the chromosomes are replicated the cells were about to divide into 2 cells (mitosis)
It is important for chromosomes to be copied before cell division because?
DNA must be copied before cell division so that one complete copy of each chromosome ends up in each of the two daughter cells. Otherwise only one cell would end up with DNA, making the other cell.. well.. not a cell.
Why do cells need to copy their chromosomes before they divide into two daughter cells?
They copy their chromosomes so that when they do divide into two different cells each one will have its own set of chromosomes and it couldn't be copied and transferred after divison occured
How a cells chromosome change as a cell prepares to divide?
the chromosomes are replicated (copied) and are compacted into dense visible structures
Why are chromosome copied before mitosis?
After Mitosis, the result is 2 new, identical, daughter cells. In order for each to be identical, the chromosomes must be copied.
What happens to genes when cells divide?
If a cell divides by mitosis both cells will have the diploid (2N) number of chromosomes. These two cells will have identical DNA If a cell divides by meiosis subsequent cells will have the haploid (1N) number of chromosomes. These cells will have the same basic amount of DNA but the DNA will not be identical. If the sex chromosomes are different sizes (like the X and Y chromosomes of humans) the DNA will vary a bit more dramatically if the meiosis includes the additional variation of the different sex chromosomes.
What is it called when cells are copied with half he number of chromosomes?
Meiosis
How many chromosomes do cells have when they divide?
Twice the number in the cell. So if the cell normally has 46 chromosomes, such as in somatic human cells, the dividing cell would have 92 chromosomes just before division. With germ cells such as sperm and egg this would be half that. Sperm and egg cells in humans would contain 23 chromosomes and 46 just before division.With N representing the number of chromosomes in an organism:Mitosis (somatic cells) 2N -> 4N division -> 2N
What happens to DNA and chromosomes when cells in most parts of the body divide?
The DNA and chromosomes divide with it
What two paired cell structures are copied before mitosis begins?
Before mitosis begins, the chromosomes and other materials are copied. The pair of centrioles which are also copied. Each chromosome now consist of two chromatids.
What types of cells divide this way for mitosis?
Chromosomes
Why do think chromosomes are copied during cell division?
To make all cells identical.
When chromosomes replicate they produce?
when the chromosomes are replicated the cells were about to divide into 2 cells (mitosis)
It is important for chromosomes to be copied before cell division because?
DNA must be copied before cell division so that one complete copy of each chromosome ends up in each of the two daughter cells. Otherwise only one cell would end up with DNA, making the other cell.. well.. not a cell.
