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Why must chromosomes be duplicated before mitosis?

DNA is the instruction of making proteins.To have a new cell that can work, it must has a replication of DNA.

  • Science -

    chromosomes must be duplicated before mitosist because i really don't know but would like to find out

  • Science -

    DNA is the instruction of making proteins. For new cells to work, it must have a Replication of DNA.

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