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Name the three main kinds of RNA

Name the three main kinds of RNA? What do you mean by heterogeneous RNA?

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Messenger RNA or mRNA, transfer RNA or tRNA, and ribosomal RNA or rRNA, are the three major kinds of RNA.

The newly made RNA molecule, a precursor of mRNA, is termed as heterogeneous RNA (or hnRNA). The heterogenous RNA bears portions termed as introns and portions termed as exons. The hnRNA is processed in numerous chemical steps, introns are eliminated and mRNA is formed only of exons, that is, the biologically active nucleotide sequences.

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