why does DNA need to replicate before cells divide?

DNA needs to replicate before cells divide to give the complete set of genetic instructions to its daughter cells, (or ensures that each new cell inherits all of the genetic traits of the parent cell).

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samueladesida43 samueladesida43 · Answer 2 · 2021-10-05T12:21:43+02:00

DNA needs to replicate before cells divide so that each daughter cell will have the same and equal number of chromosomes.

DNA REPLICATION:

DNA replication is the process whereby living organisms copy their genetic material (DNA) to produce two identical DNA molecules.

Prior to DNA replication, the double-stranded DNA separates into two single strands. Each strand then serves as a template for two new complementary strands added by DNA polymerase.

At the end of replication, each DNA molecule will consist of one new stand and one old strand.

DNA replication is paramount for every cell before undergoing division because the daughter cells of an organism produced must contain the same type and amount of genetic material as their parent.

Note that, DNA replication takes place in the synthesis (S) phase of mitosis/meiosis.

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