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Multiple Choice
Which process can produce multiple transcripts from the same gene in eukaryotes?
A
RNA capping
B
RNA editing
C
Polyadenylation
D
Alternative splicing
Verified step by step guidance
1
Understand the concept of alternative splicing: Alternative splicing is a process by which different combinations of exons are joined together to produce multiple mRNA transcripts from a single gene. This allows for the production of different proteins from the same gene, increasing the diversity of proteins that a cell can produce.
Recognize the role of exons and introns: In eukaryotic genes, exons are the coding regions that are expressed, while introns are non-coding regions that are removed during RNA processing. Alternative splicing involves the selective inclusion or exclusion of certain exons.
Explore the mechanisms of alternative splicing: During RNA processing, the spliceosome, a complex of proteins and RNA, facilitates the removal of introns and the joining of exons. Alternative splicing can occur through different mechanisms, such as exon skipping, mutually exclusive exons, or alternative 5' or 3' splice sites.
Consider the impact of alternative splicing on gene expression: By producing multiple mRNA transcripts from a single gene, alternative splicing allows for the regulation of gene expression and the adaptation of protein function to meet the needs of the cell or organism.
Compare alternative splicing with other RNA processing events: Unlike RNA capping, RNA editing, and polyadenylation, which modify the mRNA transcript, alternative splicing changes the composition of the mRNA by altering which exons are included, thus generating different transcripts from the same gene.