Structure of RNA

It is single stranded, the sugar contains Oxygen. It is also called ribonucleic acid. The nitrogenous bases are not in pairs, they occur singly. RNA is found in the nucleus as well as the cytoplasm.

The pyrimidine is Uracil instead of thymine. There are three types which are involved in the synthesis of protein molecules. They are :

• messenger RNA (mRNA), 
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• transfer RNA  (tRNA),
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• ribosonal RNA (rRNA)