True or false: the introns of eukaryotic mRNA are spliced together.

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Multiple Choice

True or false: the introns of eukaryotic mRNA are spliced together.

Explanation:
Splicing removes introns and connects exons. In the processing of eukaryotic pre-mRNA, the noncoding introns are cut out by the spliceosome and the adjacent exons are ligated together to form mature mRNA that contains only exons. The introns are not kept or joined—they’re removed and degraded. While exons can be joined in different ways to generate multiple mRNA variants, introns themselves are not spliced together.

Splicing removes introns and connects exons. In the processing of eukaryotic pre-mRNA, the noncoding introns are cut out by the spliceosome and the adjacent exons are ligated together to form mature mRNA that contains only exons. The introns are not kept or joined—they’re removed and degraded. While exons can be joined in different ways to generate multiple mRNA variants, introns themselves are not spliced together.

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