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Why is it important that chromosomes make exact copies of themselves before the cell divides?
Wiki User
∙ 7y ago
Otherwise only one cell would have the necessary genetic material to function, and the other cell would have nothing and would serve no purpose. Either that or each cell would get half of the necessary DNA which would leave two completely useless cells.
Wiki User
∙ 11y ago
Wiki User
∙ 7y agoIf not copied correctly the daughter cells will not function the same as the original cell did, at the worst case they may not function at all.
However some variation in chromosomes MUST sometimes happen to give the selection processes that permit evolution to find and make improvements in the functioning of cells. So if exact copies were consistently infallibly made, evolution would stop.
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What do chromosomes do before mitosis?
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.
Why do chromosomes line up in the middle of the cell during metaphase?
It is important that chromosomes move during mitosis because the chromosomes' sister chromatids need to separate. They must separate to become daughter cell-carrying chromosomes themselves.
Before a cell divides it must first make an exact copy of all of its?
A cell must make an exact copy of its genome before it divides. Genomes are the complete set of chromosomes present in a cell.
When a cell divides by mitosis how is the chromosome number affected?
In the beginning of mitosis the number of chromosomes double. But since during mitosis the chromosomes are divided between the two daughter cells the number of chromosomes at the end is the same number as the beginning before doubling.
Why do chromosomes in parent cell duplicate during mitosis?
Chromosomes doubles during the S phase of inter-phase, which occurs before Mitosis. During the process of mitoses cell divides into 2 daughter cells from a single parent hence, before mitoses cells must duplicate so that each new cell has a sufficient set of genetic material.
What do chromosomes do before mitosis?
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.
When a body cell divides through the process of mitosis what is the number of chromosomes in the daughter cells?
After mitosis each daughter cell contains 46 chromosomes as the DNA replicates itself before the cell divides
Why do chromosomes line up in the middle of the cell during metaphase?
It is important that chromosomes move during mitosis because the chromosomes' sister chromatids need to separate. They must separate to become daughter cell-carrying chromosomes themselves.
What happens to the chromosome before an animal cell divides?
The chromosomes have to split and go to opposite sides of the cell.
Why does a cell make a copy of itself before it divides?
So that the new cells have the same chromosomes as the parent cells.
Before a cell divides it must first make an exact copy of all of its?
A cell must make an exact copy of its genome before it divides. Genomes are the complete set of chromosomes present in a cell.
How many chromosomes are in a human cell before and after meiosis?
When meiosis begins at Gap 1 phase (G1) the cell of a human has 46 chromosomes or 2n.
During binary fission of prokaryotes both the original and the duplicated chromosomes attach to what before the cell divides in half?
plasma membrane; :)
When a cell divides by mitosis how is the chromosome number affected?
In the beginning of mitosis the number of chromosomes double. But since during mitosis the chromosomes are divided between the two daughter cells the number of chromosomes at the end is the same number as the beginning before doubling.
Why do chromosomes in parent cell duplicate during mitosis?
Chromosomes doubles during the S phase of inter-phase, which occurs before Mitosis. During the process of mitoses cell divides into 2 daughter cells from a single parent hence, before mitoses cells must duplicate so that each new cell has a sufficient set of genetic material.
If the original cell has 46 chromosomes how can each daughter cell also have 46 chromosomes?
AnswerThe chromosomes replicates themselves before splitting into two daughter cells.
Why do chromosomes need to become 2 strands before the cell divides?
The second strand of a chromosome is a copy of the genetic information for that cell. There are 2 strands so that when the cell divides, there is one copy of each chromosome for each offspring cell.
