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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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ProfessorChromosomes double before mitosis during the S phase of the cell cycle to ensure that each new daughter cell receives a complete and identical set of genetic information. This doubling allows for proper segregation and distribution of genetic material during cell division, maintaining the integrity and stability of the genetic information passed on to the offspring cells.
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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
