One strand of a section of DNA isolated from the bacterium E. coli reads: 5-GTAG

Question

One strand of a section of DNA isolated from the bacterium E. coli reads:

5-GTAGCCTACCCATAGG-3

Address the following.

1.    An mRNA is transcribed from this DNA using the complementary strand as a template. The sequence of the mRNA in this region will be 5'-_____________ -3'

2. The number of peptides that could potentially be made from this sequence of RNA, assuming that translation initiates upstream of this sequence is _______________

3. These peptides are ___________ and ___________ (Use the one-letter amino acid code in your answer)

Explanation / Answer

5-GTAGCCTACCCATAGG-3

3'-CATCGGATGGGTATCC-5'

1. The mRNA sequence would be 5'-GUAGCCUACCCAUAGG-3'

2. Two peptides can be made from this peptide

3. the peptide sequences are VAYP and stop codon

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