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Question

Which form of RNA is most heterogeneous?

A
tRNA
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B
mRNA
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C
rRNA
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D
hnRNA
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Solution

The correct option is D hnRNA
Precursor mRNA is otherwise called as hnRNA. It is an immature single strand of messenger ribonucleic acid (mRNA). Pre mRNA is synthesized from a DNA template in the cell nucleus by transcription. It contains both the exons and the introns.
So, the correct answer is 'hnRNA'

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