Tue October 02, 2012 By: Jaya Singh

Why cellular machinery has to grow along with DNA?

Expert Reply
Wed October 03, 2012
This is done so that when the replicated DNA separates, each will have an organised cell for carrying out its function.
Cells use chemical reactions to build copies of their DNA. This creates two copies of the DNA in a reproducing cell, and they will need to be separated from each other. But keeping one copy of DNA in the original cell and removing the other one out would not work, 
because the copy pushed out would not have any organised cellular structure for maintaining life processes. Therefore, DNA copying is accompanied by the creation of an additional cellular apparatus, so that when the DNA copies separate, each would have its own cellular apparatus.
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