Which one of the following is true about splicing?Group of answer choicesIn prokaryotes, splicing repressors prevent the recognition of a 3’ splice junction.Splicing activators are proteins with RNA binding activityDifferential splicing means that proteins can be produced with their domains in different orders.In eukaryotes, all cells produce one splicing pattern for a particular gene.
Question
Which one of the following is true about splicing?Group of answer choicesIn prokaryotes, splicing repressors prevent the recognition of a 3’ splice junction.Splicing activators are proteins with RNA binding activityDifferential splicing means that proteins can be produced with their domains in different orders.In eukaryotes, all cells produce one splicing pattern for a particular gene.
Solution
The correct statement about splicing is: "Splicing activators are proteins with RNA binding activity."
Here's why:
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"In prokaryotes, splicing repressors prevent the recognition of a 3’ splice junction." - This is incorrect. Prokaryotes do not undergo splicing as they lack a nucleus and their genes are not interrupted by introns.
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"Splicing activators are proteins with RNA binding activity." - This is correct. Splicing activators are indeed proteins that bind to specific sites on the pre-mRNA and enhance the ability of the splicing machinery to carry out its function.
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"Differential splicing means that proteins can be produced with their domains in different orders." - This is incorrect. Differential (or alternative) splicing does allow for the production of different protein isoforms from a single gene, but it does not change the order of the protein domains. It can include or exclude certain exons, but the order of the exons (and thus the domains) remains the same.
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"In eukaryotes, all cells produce one splicing
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