What are the main differences between RNA and DNA molecules?

When it comes to structure single strands of DNA and RNA are highly similar. However, there are few major differences which reflect the different functions of these molecules. Namely, DNA acts as a genetic instruction for the development and function of living things and therefore must be replicated with a high accuracy. In contrast, RNA is transcribed directly from DNA and is transported to ribosomes in the cytoplasm where it acts as a template for protein production (i.e. translation). The three-dimensional structure of RNA is single-stranded, allowing it to act as an open template during translation. In contrast, DNA form a two-stranded double helixwhich allows for two identical copies of DNA to be produced before a divide. Secondarily, in RNA contains thymidine instead of uracil. These are structurally very similar meaning uracil base pairs with adenosine in a similar fashion to thymidine. Finally, RNA has a ribose sugar instead of a deoxyribose sugar of DNA, hence their names. Other than these differences RNA and DNA are the same. (Key words are underlined)