Need genetics professor or wiz! Map Sapling Learning macmillan learning The exam

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Map Sapling Learning macmillan learning The example below shows the splicing of a hypothetical, premature mRNA (pre-mRNA) transcribed from the gene for yellow fluorescent protein (YFP). Two different YFP mRNAs, isoform A and isoform B, are produced by alternative splicing. What are the possible outcomes of the alternative splicing shown? Unspliced YFP premature mRNA Poly- A tail Exon I Exon 3 5' UTR Intron 3' UTR Spliced YFP mRNA Isoforms Isoform A Cap Exon 1 Exon 2 Exon 3 3' UTR Poly-A tail 5' UTR Exon l Isoform B Poly-A tail Cap 5' UTR Exon 3 3' UTR The protein encoded by isoform A has a different function than the protein encoded by isoform B. Isoform-A mRNA is degraded faster than isoform-B mRNA is. he protein translated from isoform B is stable but lacks a functional domain. The alternative splicing of YFP pre-mRNA prevents polyadenylation Exon 2 will be added to isoform B later to correct the mistake in splicing

Explanation / Answer

Anwer is:

The protein encoded by isoform A has a different function thant the protein encoded by isoform B.

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