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Just before cell division begins,the amount of DNA doubles and so do the chromosomes.Each doubled chromosome consists of two copies of the original chromosome joined at the center
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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 event must occur outside the nucleus before mitosis can begin?
Before mitosis can happen, the chromosomes inside the nucleus must separate to form identical pairs. This sets the stage for each of the daughter cells to have a copy of the DNA to replicate the full sequence.
What must occur before mitosis takes place?
The chromosomes must be duplicated. the real answer: DNA replicates and forms tetrads
Why must a cell copy its chromosomes before it can go through mitosis?
Cells must copy their chromosomes before mitosis to ensure that each daughter cell receives a complete set of genetic information. This process, known as DNA replication, ensures that the daughter cells will have the same genetic material as the parent cell. Without this replication, the daughter cells could end up with missing or incomplete chromosomes, leading to genetic abnormalities.
What is the phase of mitosis when chromosomes become visibly shortened and thickened?
Prophase
What must happened before mitosis can begin?
The chromosomes must be duplicated. the real answer: DNA replicates and forms tetrads
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 event must occur outside the nucleus before mitosis can begin?
Before mitosis can happen, the chromosomes inside the nucleus must separate to form identical pairs. This sets the stage for each of the daughter cells to have a copy of the DNA to replicate the full sequence.
What must happen before meiosis or mitosis can take place?
The cell must undergo DNA replication to ensure that each daughter cell will receive a complete set of chromosomes during meiosis or mitosis. This step is crucial for the accurate distribution of genetic material to the daughter cells.
Why must chromosomes be duplicated before mitosis?
Chromosomes must be duplicated before mitosis to ensure that each daughter cell receives an exact copy of the genetic material present in the parent cell. This duplication allows for the accurate distribution of genetic information to maintain genetic stability and facilitate proper cell division.
Why must a cell chromosome duplicate before mitosis occurs?
Because the daughter cells have to have the same number of chromosomes you began with. When the cells go through mitosis the get split. If you split a cell with 46 chromosomes into two, you would only have 23 each. That's why it needs to replicate beforehand. It will make sure the cells always have 46 chromosomes.
What must occur before mitosis takes place?
The chromosomes must be duplicated. the real answer: DNA replicates and forms tetrads
Why must a cell copy its chromosomes before it can go through mitosis?
Cells must copy their chromosomes before mitosis to ensure that each daughter cell receives a complete set of genetic information. This process, known as DNA replication, ensures that the daughter cells will have the same genetic material as the parent cell. Without this replication, the daughter cells could end up with missing or incomplete chromosomes, leading to genetic abnormalities.
If a cell has 12 chromosomes how many chromosomes will each daughter cell have after mitosis?
The desired result of mitosis is the division of a parent cell's genome into two daughter cells, therefore a parent cell must make a copy of each chromosome it posseses before mitosis. So, barring any errors, if a parent cell contains 12 chromosomes at the beginning of mitosis, each of the two daughter cells will contain 12 chromosomes at the end of mitosis.
What must happen before meiosis can begin?
DNA replicates and forms tetrad—APEX.
How many chromosomes are in cells formed during mitosis?
A cell undergoing mitosis has twice the usual number of chromosomes for that species. For example, human body cells have 46 chromosomes, but after DNA replication, which must occur before mitosis, a human body cell will have 92 chromosomes.
Why must S phase come before mitosis?
S phase must come before mitosis because during S phase, DNA replication occurs, ensuring that each new daughter cell receives a complete set of genetic information. Without DNA replication in S phase, the daughter cells produced during mitosis would not have the correct amount of genetic material needed for proper cell division. This would result in genetic abnormalities and potential cell death.
