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Use the mRNA sequence shown below to answer the following questions. The 5\' and

ID: 44163 • Letter: U

Question

Use the mRNA sequence shown below to answer the following questions. The 5' and 3' splice sites (the first and last base pairs in the intron) are underlined. pre-mRNA: 5' ACUGGACAG AUGAAUACAACAC UCGGCACCACG 3' What mRNA sequence will be produced from this sequence? What is the peptide sequence encoded by this product (assume the first ACU is a codon)? If a mutation changed the first G (bolded) in splice donor to a C, what mRNA product would be formed? What would the peptide sequence encoded by the mRNA in "c" be if it was translated? You are studying a gene that has alternate transcripts in different tissues in the body.

Explanation / Answer

Pre mRNA sequence

5

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