IGNOU BBCCT 123 2026 - Explain how alternative splicing and RNA editing contribute

Question

Explain how alternative splicing and RNA editing contribute to proteomic diversity in eukaryotes.

10 Feb 2026

Answer :

Word Count : 262

Proteomic diversity in eukaryotes is greatly enhanced by post-transcriptional mechanisms such as alternative splicing and RNA editing, which allow a single gene to produce multiple protein variants. These processes expand the functional capacity of the genome without increasing the number of genes. Alternative splicing occurs during the processing of pre-mRNA in the nucleus. In eukaryotic genes, coding regions called exons are interrupted by non-coding regions called introns. After transcription, introns are

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