What are the main differences between DNA and RNA? 

Explanation

`{:("DNA","RNA"),("(1) Nitrogen bases are Adenine, Guanine Thymine and cytosine.","(1) Nitrogen bases are Adenine, Guanine, Uracil and Cytosine."),("(2) Deoxyribose sugar is present.","(2) Ribose sugar is present."):}`