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When cells divide, the new cells produced must have a full set of genes in order to function correctly. Genes are made of DNA so it is necessary to replicate (copy) the DNA before the cell divides.

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13y ago
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13y ago

DNA is replicated during the S phase of the cell cycle. If DNA is not replicated then the new cell will not have a copy of the DNA. If it does not have a copy of the DNA, then the cell will not be able to function properly.

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5mo ago

DNA needs to be replicated before cell division so that each new cell receives an exact copy of the genetic information. This process ensures that genetic material is passed down accurately to daughter cells and maintains the stability of the organism's genome.

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15y ago

All cells need a copy of the DNA in order to work and function properly, and if DNA wasn't replicated, all of the cells would have to keep going back to the brain for instructions on what to do next, and the veins to the brain would clog, and the person would die.

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13y ago

DNA molecules be replicated so that new cells can synthesize the proteins necessary to maintain life functions, build, and repair cell parts and perform other metabolic functions.

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15y ago

DNA needs to be replaced for growth and repair.

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Q: When and why does DNA need to be replicated?
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