What are the functional differences between RNA and DNA

DNA is the medium which encodes the information that makes an organism what it is. DNA usually forms a double stranded structure and encodes genes and other regulatory elements. 

RNA can act as either catalyst like proteins, a store of information like DNA, or both. mRNA is produced when the DNA of a cell is read by specific enzymes (RNA polymerase) and is then itself read by ribosomes to produce proteins. Hence earning its name of messenger RNA. 
 

Answered by Rosewan A. Biology tutor

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