Unspliced mRNA precursors are known as...

Options :
  1. cRNA
  2. hnRNA
  3. tRNA
  4. rRNA

Answer and Explanation :-

Answer: Option 2


Unspliced mRNA precursors are known as hnRNA. Precursor mRNA (pre-mRNA) is an immature single strand of messenger ribonucleic acid (mRNA). pre-mRNA is synthesized from a DNA template in the cell nucleus by transcription. Pre-mRNA comprises the bulk of heterogeneous nuclear RNA (hnRNA). Once pre-mRNA has been completely processed, it is termed "mature messenger RNA", "mature mRNA", or simply "mRNA".

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