Complete the following table:

Which of the following mutations would be most likely to have a harmful effect on an organism?

a. A deletion of three nucleotides near the middle of a gene

b. A single nucleotide deletion in the middle of an intron

c. A single nucleotide deletion near the end of the coding sequence

d. A single nucleotide insertion downstream of, and close to, the start of the coding sequence

Using Figure 17.6, identify a 5′→3′ sequence of nucleotides in the DNA template strand for an mRNA coding for the polypeptide sequence Phe-Pro-Lys.

a. 5′-UUUCCCAAA-3′

b. 5′-GAACCCCTT-3′

c. 5′-CTTCGGGAA-3′

d. 5′-AAACCCUUU-3′

Would the coupling of the processes shown in Figure 17.24 be found in a eukaryotic cell? Explain why or why not.

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