average length of hnrna in humans
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The 26,564 annotated genes in the human genome (build October, 2003) contain 233,785 exons and 207,344 introns. On average, there are 8.8 exons and 7.8 introns per gene. About 80% of the exons on each chromosome are <200 bp in length.
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The term hnRNA stands for heterogenous nuclear Ribo-Nucleic Acid. Its average length varies from 8.8 exons to 7.8 exons per gene.
Eighty per cent of exons are less than 200 base pair long. It plays a crucial role during protein synthesis by preventing endo-nuecleolytic cleavage formation. They also play a role in the process of splicing.
These are the nascent products of transcription and consist of non-coding genes (introns) and coding genes (exons).
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