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DNA and RNA play a very important role in cell reproduction.

DNA contains the genetic information including the charecteristics of thr person,

behaviour, IQ , gender etc. It's structure is like a double helix spiral ladder.

During cell reproduction this DNA should get transferred out of the nucleus and into the new fragment of the cell. Since DNA is double helix it cant exit the nucleus. It hence creates a single helix copy of itself in a protein. This is called RNA. RNA exits the nucleus and goes into the other fragment and creates more DNA strands. This is how DNA and RNA help in cellular reproduction.

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